Don't sweat it on the rain. Riding in rain is no problem as long as you avoid slick things like RR tracks and lines in the road (which don't seem so scary to me, but race commentators talk about them all the time).
Sounds like you've had your share of bad luck, so as long as you stay calm and have confidence in your abilities I'd say a long stretch of good luck is in your future and you won't crash ever again. Wouldn't that be nice.....