I have to agree with everything Bobby has already said, I admit I am a "young dog" at age 32 but I have a tremendous interest in music and particularly guitar so there's only really one thing I can do...keep practising guitar! :)

I'm not particularly brilliant or wise in the ways of music but I do enjoy myself and I think that in the end that is the most important thing. If you're enjoying what you're doing, then you're on the right track. There's going to be some frustration about new concepts and stuff at first but the results are well worth the effort and patience.

Endurance is the perseverance to continue what you are passionate about even when it is hard.