It's quite interesting to see the effort you're putting in. Instead of trying to cut back little by little, you're actually cutting off everything related to gambling, preventing you from accessing it altogether.
This is quite an interesting approach, but of course, it can also work if you truly put in more effort to suppress your urge to gamble. Trying to block gambling sites is just one option, but suppressing your ego or your desire to continue gambling is the real battle you must win.
However, as long as you succeed, it's a very good thing, and I quite like the way you discipline yourself to improve. Although it may seem a bit pushy, ultimately, as long as it works, I appreciate it.