No one understands

Depression slowly crept up on me 2.5 years ago.  I had a feeling of being unwanted.  I felt like my friends were ignoring me, and it seemed like no one cared about me.  The depression kept getting worse and worse everyday.  I am the type of person that keeps my emotions to myself, so I’d try to put on a happy face whenever I was around people.  Recently, I noticed that I’m not depressed 100% of the time.  I looked up why that might be, and my symptoms matched the bipolar disorder symptoms.  I finally decided I needed help, so I scheduled an appointment with a psychologist.  She said that she was pretty sure I had bipolar disorder, but wasn’t allowed to officially diagnose me because I am too young.  I have been trying to cope with being bipolar but it is extremely hard.  I have finally told a couple of my close friends, but I feel like they don’t think it is a very big deal.  I don’t want to tell them all about my emotions because I feel like that would just be too hard on them.  My depression has gotten so bad that I am seriously considering suicide.  I feel like the only reason I am currently alive is that it would be way too hard on my parents if I wasn’t.