Heres what my buddy tyler did when he got his acl surgery. It was deffently not as bad as yours.
He parked himself infront of a tv and xbox. Took his T3 and played video games all the time. It doesnt sounds fun really , but when i had surgery on my foot i was out for 3 weeks. thats what i did really. I never smoked weed by then because it was a long time ago but i wish i had. Makes everything better.
Honestly though its gunna suck for the first bit, but everyday will get better!