Hi Andy,
Heck, I am glad to see you overdid it a bit.
That means you felt well enough for a moment to do enough to aggravate things. It's a start right!
Hang on like a bulldog to your recovery. I cannot tell you how many times I approached and re-approached activity, rehab, therapy, etc. Start low, go slow. Nerve recovery is unlike anything else. If activity is too much expect with a nerve surgery that things may be unhappy for a few days. They can take a while to settle back down. Once they do, start up again, a little more gently. This will go on for a while and the docs know what they say when they tell you there will be good days and bad days.
Try not to get too discouraged. I would expect you to have difficulty at this point. You are just about 30 days post-op now right? You could consider gentle PT soon. Remember this is a growth situation. You may not have much capacity right now, but you will in the future. Bet you wouldnt have played Xbox three weeks ago...
Sending hugs,