Last week I had a sore lower back from doing deadlifts with incorrect form, so I skipped the second day of weight lifting. I started again today, although because my knees were pinching I decided to focus today's workout on my upper back. Next time I think I'll do bodyweight squats and lunges. I'm doing well with my upper body weight lifting exercises, so I want to continue doing them. My swimming lesson went well, although I'm still struggling with kicking on my side swim.