Hello Breeze, and welcome to the forum for the lost!
I know the feeling very well, and it took me a very long time to know why I felt like that. For meit was autism - so-called 'high functioning' - a very misleading phrase. Without knowing more about it's impossible to tell whether you may have it. What do you feel makes you feel this way? I might be able to help. I have various ways of coping with the dark clouds of depression and the feeling of being so different to most. They never work perfectly or for very long, but they've kept me alive so far.