Why are you falling? Riding too hard of a technical section, ie. roots, rocks, too steep? Not used to clipless pedals and can't get out in time? Balance issues? Bike handling issues? Depends on what is causing the problem.
Mtn. biking is fun but hard work. I like the road and yesterday was my first or second mtn bike ride in about a year and a half. I fell once but had a couple of near falls. You do improve in time. I'm just a bit rusty right now.
As we must account for every idle word, so must we account for every idle silence." ~Benjamin Franklin