Idk if this helps but First thing is Connection! You have to make more of an effort to reach out to people, first, family if you are comfortable with family, and second, friends/colleagues/well-wishers. The thing with being alone for too long is that you fall out of the habit of reaching out and connecting then Ask these questions to yourself Why you are here? Whats you purpose?then, treat urself like u treat a bsf, replace negative thoughts with positive one,one both ur heart and mind, discover urself(hv to be patient tho). Last but not least if u hv a religion have faith in God go to church or mosque Finally I wish you all the best on your journey. I hope that you get some insight into these feelings soon.