If u block urself u can unblock urself ... Nothing helps

. U just have to say no to gambling . Like i did some time ago

.
Best way is to setup 2fa on the phone and throw it into the nearest river ... problem solved : ) -beta1
Even this wouldn't help. No amount of blocks you put into place either yourself or by the site a determined or addicted gambler would easily just find ways around it. The person in question just needs to learn restraint and determination (though it's not easy).
If you set up the 2fa on a trusted friend or family member's phone with all of your funds locked inside, you won't have access to your funds unless you talk to that person and retrieve the key from them.
It won't stop you from gambling on a new account, but you won't lose what you've put into the first 2fa account.