I'm not sure if this is anxiety.

            Hi. I am 20 years old. I am pretty sure i have bipolar disorder. My sister has it and I have all the same symtoms (symptoms) as she does. She had it bad, to the point where it was out of control, and she got help. I also think I am a pure O. My sister found out that she had OCD, and when she explained what it was, I knew I had part of it, the obsessive part. But I believe that I have both those disorders in my control.
            
            The problem I have is hard for me to explain. Its like I need to do something, I know I can do it, I enjoy doing it, but I just can't bring myself to do it. For example I do a volunteer work, this work is a huge foundation in my life. I can do it on my own or even with my sister just fine. But, when I make plans with anyone else, the day before, I come up with millions of reasons why I can't, and I always flake. I can't figure out why.