Replying to Torn UCL ligament

So way back in august I tore my UCL ligament in my thumb (Ulnar collateral ligament) and it still hasn't healed. I'm getting surgery in like a week to finally fix it. I was wondering if anyone who's in my position can tell me about the recovery time and stuff. The doc said it would be 5 moths until i can fully use it but i think thats bs considering its such a small ligament. Anyway if any of you have advice it'll be much appreciated! Thanks NS!