I'm 6'4" (192cm) and 120kg. I do Capoeira (which I would HIGHLY recommend for fitness, and general good times. It's a blend of martial arts kicks and acrobatic type moves - very dynamic, and visually spectacular). I'm developing my handstand, and strength-wise it's fine, my problem is the fear of falling over backwards. My practice space is hard wood floor, and I do NOT fancy crashing down like a falling tree. If I know the wall is there to catch me if I go over, I'm fine - so I probably need to try with a crash mat or something.
To get over the fear of falling over backwards, you must learn to turn your tree trunk like fall into a collapse to a ball and then a forward roll. If you have a bit of muscle on your back and shoulders rolling even on a hard floor should not be too uncomfortable. (A crash mat is still a good idea though.)
