Welcome to the forums! I'm also 15 and was considering getting a chameleon, but I decided it wouldn't be a good fit because I personally felt like I needed more experience with lizards before I got a cham. I've kept tree frogs, bullfrogs, a crested gecko, and I currently have a ball python that I got almost 4 years ago. I think if you do enough research you could definitely make it work. You also need to keep in mind the cost of the setup, the live feeders, the supplements, etc. That's the main reason I didn't get a chameleon, I want to wait until I turn 16 and got a job where I could pay for everything myself, so that's something you should keep in mind. I have 3 dogs and I have to say there is absolutely nothing that you can compare to keeping reptiles other than giving them food and water. Reptiles, especially chameleons, do not necessarily enjoy being handled and played with. Good luck!