I am not in a position to judge you or give advice to you, but i will do it anyway. It is clear that you must make some changes in your life. You already know that. You need to do things that make you happy. Can you answer this question: "What makes you happy?" I think you will have to think for a while to find an answer. Why dont you have some new hobbies? You can join some groups or organisations. I also suggest talking to your friends, to share your problems. It's normal that you find it difficult to live in a new environment, leaving your family and your friends behind. There are too many uncertainties. If you keep thinking about them, you will recover slower. In the end, what we all say here, does not matter. You are the only person who can rescue yourself. It's easy to say "dont think too much about your problems, do this do that..." but very hard to do. I hope you will find enough strength to deal with them.

You are very kind. You'll help other people. Sometimes you need help too. It is not easy for a single people to live in an unfamiliar place. When I went out for work and stayed in the hotel in the midnight, I had nothing to do. Whatching TV or Going on net may be a good choice.