Please, I need your guidance! An almost 18 yo fighting

Hello everyone!

I am from Romania and I am 18 yo. I have started masturbating when I was 5 yo, after finding a piece of newspaper with some escort advertisment. I have always masturbated prone, keeping my underwears on me. I have rarely masturbated the "usual" way. I think prone masturbation has affected my penis growth, too.
When I was 9 to, I decided to look up some porn videos. After a few months, my mom discovered it and I stopped it till the 3rd or 4th grade( when puberty is around the corner ). When I was in the 6th grade( 12-13yo) my puberty hit me very bad ( a huge weight gain, moustache, I also became taller ).
I need to mention that I had never decalotated my penis till 9th grade when a doctor told me to do that.
I used to be good at NoFap till the pandemic came in. Last summer, I lost a lot of weight by fasting, but I still went pmo-ing because I needed something to relieve my hunger.
I have never had a girlfriend and I do not have many friends. I am a lonely person, but I don't think this has something to do with pmo. I am very talkative and I get along with people easily.
I wanted to start NoFap because it affects my spiritual life and also pmoing eats lots of my energy and time. But I don't feel strong enough for this. Whenever urges come, I can't concentrate and my body warms in a very strange way. I also have a quite busy and sometimes stressful life, having lots of exams, tests and objectives.
So, what piece of advice do you have for me ?