Hey, please don't feel like that. You gotta realize that at the end of the day we are people, all of us. Everyone has moments when they are feeling down, everyone has problems, thoughts and rainy days, there are a lot of people that feel exactly like you do. All you gotta do is realize that and you will for sure feel more comfortable talking to people and building a friendship. Do you have a job? If you do, just try talking to them one day about what work. If not, get a job, it will change everything, you will meet people and it will keep you busy. If you don't have the energy for a job take some time to get yourself back up on your feet, when you feel that you're kind of ready, do it. Without risk you truly can't win, i know it's corny but it's also true. Get out there, keep yourself busy, talk to people, you're not very different from them and they are not very different from you. If you have a hobby, that's also a way to connect with people, talk to people that share the same passion as you. I hope you have a very nice day ❤