The other day the bike slipped out from under me. I have been fairly confident in my bike handling abilities, but now when I am making 90 degree turns I still feel a little shaken as I don't want the bike to fall from under me again. Any tips to for gaining back confidence in bike handling? Are is there a speed limit I should be riding at in turns? Thanks.

Find a similar turn with little traffic and go practice on it. Do it 50 times if you need to. Once you get comfortable with a certain speed let off the brakes a little earlier the next time through.

What road did you crash on?

Somewhere in the American River Bike Trail. I admit it was a bit rainy with puddles on the ground when I fell, but I still feel shaken and need to gain my confidence back.

Cyclocross gave me tons of confidence on road handling. Once you learn how to negotiate a 180 degree turn on a slope in the mud while going as fast as possible, you get a really good sense of how far you can push the bike and transfer the knowledge to the road.

Dont feel bad.....I freak out all the time thinking "did I tighten the skewer down enough?" because I feel the front wheel will come off the bike haha.

It helps to lower your center of gravity (lean forward).

Another thing that you can do is enroll in a racing class. Or just do some cornering drills. Some examples would be to set up some cones and weave through them, picking up your water bottle from the ground while in a turn and playing follow-the-leader with friends. You can do all of these drills in a parking lot and they will help immensely.

Also play with the 3 different methods of turning:
1. steering your bike while keeping it upright. This is good for rain, sand, mud etc.
2. Normal lean. Good for most conditions.
3 Countersteer (or pushing your bike down into the turn). This is good for fast turns in good conditions.

Even if you have been cycling for years, dedicate some training time to turning and you'll be back up to full confidence and might pick up some extra maneuvering skills in case you need them.