Let me say 1st that I'm glad I found this place.

OK, this is my first post or thread, and I have limited mechanical skills.

I need to replace all three belts, that are on the right side of the engine. I'm not sure if I need an engine lift (hoist ?), if so then I'm out of luck. But if I can replace there belts on my own , by simply moving parts aside and doing it myself, it would mean a great deal to me. I'm not sure what these three belts help run .The middle belt is visibly in need of replacing, and my car isn't running as well as it should. I'm sorry for asking this question in a goofy way ( I'm sure you real mechanics are reading this and scratching your head) but I'd really appreciate your help. Thank You