I really need help

I discovered the masturbation quite early, when I was something like 8 years old. From that moment until now,
it has become a lifestyle for me. Now I'm 24 years old. I had only one girlfriend in my entire life (some months ago, the relationship was only one month and a few days). We
only had oral sex so from some points of view I'm still a virgin. I lost all my hopes regarding the possibility to quit masturbation and pornography. I tried many times but I didn't managed more than 2 weeks. Two days ago I masturbated for eight times, I'm so ashamed that I can't stop. I used to have many friends but now I'm almost alone, so most of the time I'm in my room. I have many dreams, I also really want to have a new relationship. In the last months I felt extremly sad. I don't think something good happened in my life in the last months. I started to realise that one of the main problems is regarding the addictions i have. I also have an addiction for lesbian porn, today I spent at least 6 hours watching lesbian porn.
Please help me