It's easy to overreact. We have all done it. Some of us were just luckier than you. Hang in there. Take some short rides. Next time it rains find a vacant parking lot and test the limits of your braking. Just me but when it's raining I try to stay away from the front brake. I know with the linked brakes you get some anyway and that seems to be enough in wet conditions. Glad you're ok.