I want to take guitar lessons really badly but I know when I ask my mom will say "some day you can" or "we dont have the money right now for a guitar and lessons" what can I do to try and convince them to let me?
Buy a guitar used from your local music shop, eBay, or craiglist. There are lots of good deals to be found and you can probably get an okay beginner guitar for around $100 or maybe a little less if you’re lucky. As far as lessons there are a lot of good places to learn online that are free, so you can start off with those to show your parents you’re serious, then ask them to take private lessons later on down the road.