Depression is likely a major contributor to how you feel. The two other disorders you mentioned are likely contributing as well. There’s no indication in your letter that you are in treatment or have ever been. Lack of treatment could be the problem.
You wrote that other people think negatively of you. That may not be true. You might be misinterpreting their feedback.
Also consider that your negative self-opinion likely influences how you interact with people. You might inadvertently be training them to treat you a certain way. For instance, if you make self-deprecating comments, in their presence, they might simply be agreeing with you and not really believe what they are saying. If you said good things about yourself, they might also agree just to be socially agreeable.
The solution to this problem is counseling and possibly medication. Once your symptoms have improved, your negative self-beliefs will be replaced with more reasonable and realistic views of yourself and the world. Change your thinking and you can change your life. I hope you will give counseling a try. Please take care.
Dr. Kristina Randle