I play guitar and i want to be really good at it. sadly i am not. i’m 17. i was getting good a few years ago when i was playing regularly but i kinda stopped playing. i want to start playing again but i want to get good really fast. how can i?
Practice. There are no shortcuts! Anything worthwhile is going to take time. I would recommend getting some lessons with a private teacher in your area. Find some here:
http://www.findguitarteachers.com