Hello. I'm 54 and brand new to playing acoustic guitar. I'm barely into the beginners intro courses and I find that it's really hard on my left wrist. I am 6'5" with large hands and fat fingers. I have read everywhere to expect sore fingers as a beginner but not wrist issues. I guess I should clarify that my wrist doesn't actually hurt it just gets very tired. Like I'm doing wrist curls with a weight. Is this normal for an older beginner or am I doing something wrong?