I'm so sorry to hear that you were injured, I can totally understand your thoughts about waiting to feel strong enough, please don't think that I'm being harsh but the longer you leave it, the harder it will be to get back out there. I had a pretty bad accident back in September, broken leg, shattered collar bone, busted hand and a head injury, it took me a while to become physically strong but the biggest challenge was the psychological damage it caused me, it took a lot of self confidence and will power to get back on my bike, I could find a thousand reasons not to ride and very few to ride, I ride both motorcycles and bicycles. For the first few weeks I struggled every time a car even came close to me but with lots of encouragement from my friends I got back out there and pushed through the fear. I'm hoping that you get back to good health and eventually feel strong enough to do the things you enjoy.