Family - represents unity, strength, safety, and support. Also, the values, and moral lessons, that were instilled within you at an early age.
Seeing family members in your dream is common, and it represents the way you relate with them. Do you get along with them... do you miss them... are they supportive...etc.

Cemetery/Graveyard - A cemetery is a collection of dead organic matter. It's a sad and depressing place that doesn't reflect any joy, and reflects even less hope. If someone close to you has recently died, it would be normal for you to have dreams about graveyards and death. The graveyard in your dream may be a reflection of your mood or unresolved grief. It may literally represent sadness that comes from losing someone that you love.
However, if this dream is coming up and there has been no death in the family, consider your feelings in daily life. If you are feeling depressed or helpless in any way, look inside yourself and make attempts to increase your self awareness and your spiritual identity. It could represent things which require deep thinking and are not 'on the surface'. Graves could also symbolize the unconscious, and it could represent your past and long-gone experiences.

If you are walking through, or sitting in, the cemetery, it might be a sign that you are seeking peace and quiet. On the other hand, it could signify that you are holding onto the past. Your subconscious might draw the graveyard, if in real life you are under pressure and need to make a decision, or you are too preoccupied with your past experiences and want to bury them.

Graves are generally depressing and represent some form of death. On a very physical level this dream symbol does not appear to be a very happy one. However, the dream could also have deeper and more spiritual meaning. It could represent things which require deep thinking and are not "on the surface." Graves could also symbolize the subconscious. If someone close to you has recently died, it may be normal for you to have dreams about graveyards and death. However, if this dream is coming up and there has been no death in the family, consider your feelings in daily life. If you are feeling depressed or helpless in any way, "look inside" and make attempts to increase your self awareness and your spiritual identity.

Blue has always something to do with intellectual and spiritual events, insights, experiences, and mental processes.  Blue is a symbol of emotional contentment that we all would like to attain. It indicates that you want to live wisely and with compassion. Blue stands for intellectual goals, insight, faith, spiritual maturity, enlightenment, relief from worry, and assistance from outside sources.

Dark blue - depression, negative thoughts, and aggression.
Light blue - the sense of intuition, having a wide awareness of life, religious feelings, and the 'coolness' of nature.
Soft gentle blue - a typically feminine color, representing the nurturing and emotional expression.
Blue may sometimes symbolize the universal or collective unconscious (as distinct from the individual unconscious). Perhaps the dream is asking you to base your life on intuitions that come from a deep source within your psyche.
Alternatively, blue may represent the power of the conscious mind, particularly if it is the blue of the sky.
The blue sea may symbolize the unconscious or the feminine (anima, mother, or Great Mother, the wise self).
At an advanced level of mystical awareness, blue may represent the primal energy from which the universal life-force comes.

Flowers - represent growth, fulfillment, achievement of a goal; your true self (as in nature).
Roses - symbolize love, passion, femininity, and romance.

Urine - signifies feelings, or ideas, you have rejected.

Grandmother's House:
 House - A house usually always represents you, or rather 'the self'...your body and the attributes of your personality.
They symbolize your emotional and psychological 'self'. All of your experiences, stages of development, and parts of your conscious and subconscious life may be represented by that house. The house may be representing issues concerning a particular dilemma in your life, or it may be more general and comprehensive.
Parent's/Grandparent's house - a place of security and warmth. Of innocent times, when life was simple, and you had no great responsibilities.

Boyfriend - symbolizes an actual relationship to your boyfriend, or a male figure in your life, or it may symbolize the relationship to your masculine side. Incorporating masculine aspects (that can be trusted) without letting them rule creates balance.

The Elderly -  usually the elderly represent wisdom, patience, guidance, and experience.  They serve as life lessons....to learn from their achievements, as well as their mistakes.

Grandmother/Greatgrandmother - A symbol of knowledge and wisdom, as well as security, protection, nurturance, and unconditional love. Consider the qualities and characteristics that exist in your own grandmother.

"Don't worry about it." Whenever you hear someone say something to you in a dream, it's an actual message from yourself to yourself. Your subconscious is telling you not to worry about something.

Crying - In our dreams we experience a variety of emotions. Crying in the dream state generally has the same meaning as crying in daily life. It is a release of negative emotion, frustration, or fear. Due to repression or denial, sometimes people are unable to express their feelings. In the dream state some of our defense mechanisms may relax and an emotional release occurs. Some emotional dreams may be compensatory in nature. Thus, if you never cry in daily life, you may cry in your dreams.

You are crying but your father pays no attention - you may be feeling that you are lacking support from your family with a certain issue in your waking life.
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Because the dream centers around your great-grandmother, you are probably needing some grandmotherly advice, or guidance.

Have you been feeling depressed about something lately?
Have you had a disagreement with your boyfriend recently?
Did you do something you're proud of, and no-one noticed?
Is there something you don't want to face, or admit?
Has something upset you, and you are trying to hide it?

Hope I could give you some insight, good luck!