I hope to throw my opinion in the hat. I am playing 45 plus years and I still think I suck, See as you progress you just want more of it and this leads to different levels of play. Its like money, you never have enough right.I would go with tunes you really dig, I would think they would come to you easier. Keep at it and just have fun and don't beat yourself up. If you can find some guys who play in the neighborhood this will help you big time. Gigging or playing with other musicians is the way to go and I really miss that. I am just a bed room guitar player now, but I still make it fun and now I can play what I want to instead of trying to learn new songs that you don't like. Bands will do this to you, you have to play stuff you don't like, but I guess thats what being a musician is all about, , plenty of knowledge here so you come to the right place. The instructors are alway polite and helpful, Usually in a day or two they will get back to you if you send them private messages. Some times the guys are out on the road so you have to expect that, Just be cool and enjoy,Good luck my friend, Pete