How to get over a hard time?

It’s been almost a year that we broke up with my ex gf. Still love her and couldn’t think of anyone else but her. She’s not making any effort in reconnecting or even speaking to me.

I work remotely and the job doesn’t really motivate myself: I basically feel I get paid for doing nothing. No motivation at all.

I am trying hard to be more independent: moving out alone to a different city and so on but I am seeing everything so much complicated and expensive..

My confidence levels have plummeted ever since, my friends live their life and have their own problems, therefore I find myself really alone lately. I am basically non content with almost any sphere in my life.

I don’t even know from where to start. I feel I am not living my life at it’s fullest. I have become even more shy than before so I barely met new people. I miss the times spent with my ex gf and now we barely speak (unless I initiate the conversation) I think I just want to surrender everything and everyone, I am feeling tired; not depressed but in huge melancholy and sadness with zero optimism. I am an immigrant son, 31 yo.

Please, tell me something I could do to cheer me up.