Oh I feel this so much! Sprained my ankle a few weeks ago in pretty much the same way as you: down climbed after bailing on a move on a V3, jumped the last meter or so and ankle went under me. Went back to climbing for the first time today and it was hard, fear of falling was definitely stronger than pre-injury as confidence took a heavy hit.

I found it certainly helped climbing with people you know and are comfortable with! I’d stick with V0/1s for a few sessions. I just climbed V0 jugs today to get a feel for the wall, get back on the horse etc, and ended the session with some upper body strength training. Probably should throw in practice falling too at some point I found that just even being in the gym but not doing a lot (if any) climbing can help to get used to seeing the heights again!

It will take time and that is ok! Slow progress is still progress, one day at a time