I have a small story about my ride today!!

I am on a path in some of the woods that i ride. I am going 15-16 mph and then out of nowhere is a pond!!!! so i slam on the brakes (yes i do have on my new brakes on so im not used to them , if i didnt me and my bike would be in the water! so i notice that my rear end flys up really fast so i let go of the front sightly.

The bike starts to fall to the side and i bail off the bike. the bike slides right into this tree to my side and i notice when i pull it up and rear tire is bent in a place about 1cm. so i get on it and ride home with out a rear brake because i had to disconnect it so it wouldn't rub the whole time.

So now i am here once again with a newbe question!!
I was just at my lbs last week for a tire true and some other stuff to get fix. No i am faced with the fact that i need to go back and get it done all over again. So this leads me to 2 questions :


1) should my rim bend like this, or is a very cheap/weak rim? (don't really have money to get new ones spent all my last money on the brakes)

2) Is there any way that i can true the tire myself athome (and still have it as goos as my lbs can do it)? how much is the average truing?

thank you for your help!

Jared