In reply to Kid Spatula:
How much mileage are you getting? I haven't fallen off (trad) for about ten years, but when I did it took me a long time (best part of a year) to get confidence back. I had to slowly build up again.
I think the most useful thing for me was gaining confidence in moving on rock, rather than confidence in placing gear. If the climbing feels easy you don't worry yourself about the gear. I used to try and start the year in Jan/Feb with a day on my own at Birchen with bouldering mat, and try to solo as many easy routes as possible. I'd get 40-50 done, starting at mod and working up to HVS. Mostly in the easier grades though. At the start of the day it feels terrifying (I'm not into soloing generally) but by the end of the day you really have a feel for the rock and can move with confidence. This then translated into the leading I'd do later in the season.
You have to build on it though. I live a long way from the rock, and with a young baby I don't get out much, but when I do I'm still climbing reasonably well (E1-E3) from confidence in the moves, rather than in the gear. All the gear confidence in the world won't help you if you think you're going to fall off the moves. Well, I understand that sounds like b0llox and quite counter-intuitive, but it works for me. I've climbed the same easy route (HS for example) and gibbered my way up it, not committing to the moves, desperately looking for more gear than there is, and later climbed it hardly bothering to place gear, having a nice relaxed time. That's because of being in a positive mental state, gained through confidence in my ability to move well on rock, gained from sufficient mileage over the years.
So, focus on climbing well. Don't worry about the grade. Focus on your footwork, on always being in control and in balance, always being able to reverse a move if necessary, breathe, relax, focus on the moment and the rock in front of you, not the space below you. Try to enjoy it: this can be a stressful and risky game and there's no reason to get motivated to participate if you don't enjoy it!
Also, be aware and self-aware on the factors involved when you're climbing well and when you're climbing poorly. What's the weather like? Do you climb better when the sun is out, rather than oppressive grey skies (I know I do!)? Did you have a proper breakfast? Are you hungry? Are you too cold or too hot?
Stick with it. You obviously want to keep going and to get better, which is why you're asking here. Also, know that this isn't uncommon. I'd be pretty sure most climbers on here understand to a degree what you're experiencing. You're not alone. But dealing with it is part of the fun and challenge, which is what makes it such a rewarding endeavour. Good luck!