Hi Jeroen

We all go through these struggles. Learning the guitar is a life long journey and one that you should enjoy while on this jouney. As a lot of our fellow guitar players have said on this post is, focus on some other skills and keep moving forward you can always get back to the chord changes, but never quit. You will get to that day that it al of a sudden just works, it always does if you put in the time.

Enjoy the journey