Laterals are the most humbling exercises I have ever done
I was proud of myself for being able to do bicep curls on 50 lb dumbbells. I was also proud of the progress I made in 3 months. Then someone at work pointed out I need to start training my back. Then I looked up ways to train my back without any equipment apart from dumbbells. The first exercise was to do 12 lateral raises. I thought this should be easy.
It was the most humbling experience I ever had. I obviously couldn't do it on 50 lbs. I could only do 6 on the 20 lb dumbbells but then I switched to 15 lbs and I was finally able to do them. I felt so insecure and weak afterwards.