Have a read of this page to start with mate –
GamStop
I would personally say, stick with 1 casino and set a weekly deposit limit of say £250. That is pitched at something it looks like you can afford and would still be able to quench your thirst for a bit of gaming, sometimes complete cold turkey isn’t the way – you need to tell us a bit more really, do you think that sort of solution could work or would you rather a complete gambling blackout?