can anyone releated?

hello guys I'm about to tell what I am going through right now and I would like to see if anyone already been there and can give me some advices.
I'm a 23 years old guy and I lived in England for 4 years , yeah I moved then when I was 19.So the beginning was pretty hard because I could not speak the language and I'm a really anxious guy so it took my a really good time to adjust in there and make friends.
After a while everything was getting alright and I started to date this girl and I was 20 years old I had this problems with PMO since I know myself, and never thought that was something to be worry about , because I used to tell my friends that I would masturbate myself like 2 or once a week and everyone was telling me the same , that it was pretty normal.
When I had my first sex with her I thought it was pretty lame because I did not feel that pleasure that I thought I would and it made me feel pretty bad about it.
We dated for 3 years I guess and we had our ups and downs like any other relationship , because some health problems and I had to head back to my country, so we broke up.
I stopped talking to her because I was still in love and she wanted to be just friends and I could not bear it, so I decided to blocked her in my life and in any social media because it would give me some really anxious problems and overthinking about everything.
After that I would just masturbate whenever I was feeling down or bored until I came across this videos that talks about nofap which I thought was silly.
So far I stopped masturbating myself 9 days ago and I don't feel that urge to do it and I also don't feel that anguish that I used to when I was thinking about my ex, but I still miss her but not as much.
I'm currently in Brazil which is the country that I was born but it is really taking a long time to adjust here since I don't have many friends and I also don't have a job due my health, so de only way to make some money is to play some games online which I can sell it and pay my pilates.

I'm really struggling with anxiety depression and back problems and heart broken haha, can someone help me with some advices?

(English is my 2 language sorry if the text its a bit of a mess