how to move on from an Ex

I've was with my ex/bf (Idk what we are) for about a year. I fell for him fast. I love him, but I know he's no good. 
Every time I tell myself I'm done, all it takes is one text/call from him and then I'm back to square one. I want to be over him already lol. 
I have no will power to Ignore respond/pick up his calls or even to not text/call him 😫... and when I block him... I end up unblocking him lol
Any tips on getting over him? I need to move on.