I know exactly your way of thinking. When i was like you i always went on youtube looking at guitarist 50x better than me witch made me feel behind. In my eyes theres no such thing as how far you should be or anything just keep up the rock and aslong as your in the guitarist community... Anyway i know people who are so good at grades but when it commes to playing with a band there usless, grade is just proof on paper. However, there worth checking out in the future if ya wana get somewhere.