Hi. I recommend taking all your credit cards and scratching off the CVC numbers. You can still use the cards but can’t use them online. If you know the numbers by heart, apply for new ones, tell the bank you lost them and then scratch without looking. Self exclude to old sites.
Also, what helped me is developing a hobby that in a way is similar to gambling but is not gambling. Walking, running, playing tennis is great but you also need something similar to gambling. For example, I gamble to relax, escape and get a thrill. I do it on my Android phone, mostly lying down in a relaxed position. I’ve substituted this with watching true crime documentaries on youtube. My body position is the same as it would be while gambling, the context is thrilling, yet it is not gambling. It’s similar, but safe.