Welcome Kat! Les Davis is a good spot, but for a new diver I'd suggest Redondo simply because of the guide ropes. And there's always something good to see at Redondo. Since you got cold I assume you're diving wet, so here's what we did before we got dry suits (just a few months ago, and my daughter still doesn't have one): go to a thrift store and find a 5-gallon thermos type jug, one that's reasonably well insulated. Fill it with bathtub-warm water and have some sort of plastic pitcher handy to scoop the water with. After the dive - and maybe before, opinions differ - just dip up a couple of pitchers of that warm/semi-hot water and dump it down your suit. Have your buddy dump some down the back of your suit if you're like me and your body doesn't bend that way any more
![Boo hoo! :-({|=](./images/smilies/eusa_boohoo.gif)
You won't be cold for long. That's the beauty of this sport: there's always a way, you just have to find it.
And don't be afraid to ask about dive buddies/guides in the area. There's a truckload of good folks here ready, willing and able to go with you and help you get as much as you possibly can out of the diving experience. Tap into it with reckless abandon!