Welcome Sherry!
I'm sorry you're having leaks. There are lots of ostomy products to choose from, you just have to find the right one for you. If you call or visit the manufacturers web sites, they will send you free samples:
www.coloplast.com
www.convatec.com
www.hollister.com.
On a personal note, I have been using the Coloplast Assura Extended Wear wafer #2833 with matching pouch #13986 for 4 years now and have not had any leaks. The skin prep is built into the wafer, so I put it on dry skin with some Stomahesive paste around the hole in the wafer.
You will find the right product for you. Now, I just wish I knew how to fix a teenager's attitude...
Good luck and keep us posted!
Cecilia