[Superman]

Keep at it. It will get easier....or at least.....you will see the progress.

Aside from the finger soreness, is it fun to practice? When you get past the slow, cumbersome torture of making chords, and you get to the point where you are actually playing a song, then is it fun? It should be. If practicing becomes fun, then your chances of becoming proficient are greatly improved. Compared to your chances of becoming proficient through practicing that is a chore. It takes a lot of time. If it is fun, keep doing it. If it is not, then stop. Like everything else, only more so.