Congrats on going clipless! Now that you have the first fall out of the way, you'll be fine, although there are no guarantees you won't fall again (sorry). For a while, I had a 50% average -- I would fall half the time I rode! I've fallen on the side of the road, in middle of an intersection, and only once in a grassy spot, and I've never had any injury worse than a bruise or a scraped knee or elbow or something. Fortunately, the worst bike damage I did was a scrape on a saddle that I hated anyway. Falling occasionally is part of riding. You'll get more and more confident every time you ride, and pretty soon you won't even think about it, you'll just do it. So, keep practicing!
KB