I would like a realistic opinion on how profitable the average online casino is. Is there money to be made, or are there so many online casinos around that competition has stifled any chance of real profit?

I feel I have an issue with online gaming, but only online gaming, so I really don’t want to do something like Gamblers Anonymous or anything like that. I truly feel that I can take care of my problem by restricting myself. It’s worked in the past but I’ve been able to find loopholes when I have extra cash to throw around. There are hundreds of online casinos, so I can’t go to every one individually and tell them not to give me an account. Any ideas?