That's to bad Ivan :( The good news ! is there's still plenty to do with your other hand. or to get started on :) I dare say You might even have a advantage !!! not having to worry about your picking. lol spiders,trills,ladders eg. Lock down your chromatic form :) and good hand habits from the very start :)
A few years ago,i badly broke my ring finger(left hand) falling in the river, chasing a trout lol i had to be on stage 2 nights later lol i must say it was really interesting. As the show must go on lol all i could do was play 1 or 2 notes from every chord or simple melody's !!! It really opened my eye's and learned the huge lesson less, is WAYYYY more !!! I even sounded better(different) ... and it changed the way i approach my role as a player...had to play a few shows like that . Hope it never happens again ! but learned alot from the experience :) hope your hand gets better soon :) but there's still a ton of fun to have and do. I'm sure the guys have a ton more ideas for you :)
Quack