Guitar playing is a passion for many, who often see the glitz and glamour- and the plain coolness of guitar playing. However, there is an extremely common phenomenon of a sort of brick wall in skill, you reach a decent level then you can`t seem to find that next step to really kick on and become the guitarist of your dreams. When improving at anything self-reflection is one of the most important qualities, you need to be your own harshest critic, so recording yourself and listening to how you play is imperative you need to recognise your own strengths and weaknesses.
Another key is keeping your own enthusiasm in guitar playing it should not feel like a chore, this can involve buying new guitar pedals to experiment with different sounds or sampling different guitar tunings. So perhaps instead of playing your favourite John Lennon song in the same old way you experiment with a reverb pedal, really try push the sound you can create out of your guitar, and this is a guarantee to not only keep you enthusiastic, but improving.
In order to improve it is also important to play with friends, not only as I previously mentioned this will help with your enthusiasm for guitar, but you will learn new ideas and pick up on their different techniques. Playing in a band or jamming with friends gives you that in-game experience that playing alone simply will not allow. You will pick up an ear for timing, when to play the right note, how to play the right note. Feedback is essential and playing in a band environment will give you an instantaneous judgement. To truly improve you need to listen to yourself play, try keep the guitar fun and attempt to jam with fellow musicians.