Healing process/ possible further damage to sprained ankle?

A month ago, I leapt off a staircase and swung off of a bar overhead and landed wrong on my foot. I chipped the talus bone and severely sprained the front/side part (it's my right ankle). The pain was never that bad (except for the moment that it happened), and after walking on it for a day I got x-rayed and was put in a cast for the broken bone and was told I had a severe sprain. I wore the cast for two weeks, and then was put in an air cast that I have been "sort of" wearing for the past two weeks. (The bone was well re-joined after I got the cast off, and there was no pain.) I think the doctors sort of forgot about the sprained part, but it's still bothering me. I *might* have started practicing basketball again, (don't get mad), and soccer starts in a month, and I need to be able to kick. My question is: Could I possibly make the sprain worse by playing sports on it, and will I be able to kick a soccer ball if it still hurts once the season roles around? I need some real advice please, and don't get pis*** that I'm playing sports again. My stupid decision, not yours.