Hi Tina,
I have natural curly hair too. I tried the reverse perm but my hair wouldn't take it either. I wear my hair straight alot but I've finally mastered wearing it curly after the years, so here's my advice. After showering, do not brush your hair, put in a good but light leave in conditioner I like Paul Mitchell - The Conditioner. Then I use a spray gel so that I can spray it evenly over my hair I like L'oreal Vive for curly hair. Now brush your hair one time to spread the product evenly. Now use a little bit of hairspray to cover your whole head I like herbal essence. Blow dry your hair for about 2 minutes to set the products. Depending on how curly your hair is on top you might need to pull it back in a pony tail to keep the hair on top straight. Then once your hair is dry like the next morning take a big curling iron and wrap it around a section of your hair, you'll have to determine how long to leave it on for, but do this all over your head and you should get a wavy look, it's time consuming but this is what I always read in my magazines and it's what they do on celebrities. Make sure your curling iron is on the highest setting. I hope I helped.
Heather