I've been trying to learn how to play guitar for 3 years, but I really haven't gotten anywhere. I don't feel I'm able to learn more or go any further. I wish it was the kind of hobby where it could release stress but it isn't. I'm taking a break and will see if it comes back to me later. I'm thinking about picking up drums.
did this happen to anyone before?
Hell yeah! Exact same experience. I've been playing about 7 years now and although it's all new and exciting at first, you reach a point where you get stuck and can't seem to learn anymore. Infact it's possible to quantify this in a time versus wowness graph:
You reach the plateau's and get bored and feel like you're going no-where. Afet a bit though, you'll go back to a song you could never play before and be able to do it! And then you'll embark up the next wowness slant!
My advice would be to give it a break if you're not enjoying it and pick it up a bit later. Or buy a fancy effects pedal! You'll get back into it thwen no time as you sound a hell of a lot better!