As someone who’s still struggling but has come a miraculously long way, I’d like to share with my beloved brothers what has worked for me.
I’ve been masturbating excessively for 15+ years of my life. I’ve been involved with online (and offline) forbidden relationships… doing a lot of garbage! I also managed to be Mechalel Shabbos and dabbled in atheism. Lost a few jobs and got close to loosing my marriage. And my
life. 
I went for therapy and B”h it helped me through crisis and kept me afloat. 
I only began to really heal when I recognized the REAL problem. I’ll try to explain. 
You can have two people with the same difficult situation but they have completely different problems. A non believer also has a problem with P&M but for him it’s all about him and how he wants to feel - his ego. But for a holy Neshoma, the problem is that we’re disconnected from Hashem. And when you cry to Hashem for such a problem - that we want to be close. Hashem makes miracles happen!