Lol why would you lock funds on a gambling site as gambling addict :p but help from family/friends could be good. Could ask for mental help or get a 2 of 2 multisig addy for ur savings where ur friend/family needs to confirm any transaction. If you feel the need to gamble, send it to that address.
I was under the impression that he felt stuck and wanted to get some of his bitcoin back. He won't be able to do this by continue betting, but he has a great chance at slowly recovering his losses by putting it on the winning side with a positive house edge while at the same time blocking himself from using those funds to gamble at a negative one.
A huge part of gambling addiction is the feeling of being lost and hopeless; trying desperately any way you can to get back in the positive. I was trying to provide a way that may help in that respect.