I'm an Aquarius just about on the verge of destroying my Pisces "best frien!

I'm an Aquarius just about on the verge of destroying my Pisces "best friend"?

Me- Feb 15, 1990 5:02am Santa Clara, CA
Her- Feb 28, 1989 approx. 1:00pm Concord, MA

I've got a bipolar "best friend" who I feel is really not that good of a friend anymore. She constantly insults all the people around her, uses her cutness to manipulate others to pity her. She's extremley self centered, yet is so emotionally clingy and sensitive. She cries on a whim, and always needs reassurance and can't depend on herself for the life of her. She sleeps more than 12 hours a day, and complains about doing things she needs to do in order to get anywhere in life.
I'm usually very calm and have done everything to try and support and comfort her. She has a comfortable life, but she some how still finds ways to get herself into "drama" (for attention). She's extremley pessemistic and hates everyone she doesn't know. I'm seriously on the verge of destroying her. I know how to break her, both physically and psycologically. But I don't want to. Astrological advise on the situation?

1 week ago
I'm an Aquarius with a moon in Scorpio and Capricorn Ascendant.

She's a Pisces with a Sagittarius moon and I'm not so sure about her ascendant but it's either Cancer or Gemini (my money is on the Gemini).

Also; I want to keep the friendship going, I feel I need to help her and that once she gets over being a pathetic, spoiled brat, she could accomplish a lot in her life. But I don't know if the emotional wear and tear is worth taking anymore, I'm seriously close to snapping.

Yea that is typical. I have been exactly where you are. I'm a Pro astrologer and yet that hit home. You will never stop rescuing her. She will always be in the "drama" field. And you are left wondering where the He** is this womans common sense?
You can't save her.. She can only save herself. Your natural instinct is to reach out and correct the problem. The problem is, that she doesn't think she has a problem and it's everyone else that is causing her drama and her problems.
You will end up weary and tired.
Don't break her. You can, but don't do it. Realize that she is beyond your help and slowly back away.
I have been exactly where you are. And at 47 she is still doing the same exact things that she did at 20.
It won't change until she decides to change. But you can change your attitude towards her.
Blessings.