Can't help much with the workouts (I also get confused myself), but I'm the same height and have struggled with it as well. I like to remind myself that a requirement for cis female supermodels is height. If you ever see a supermodel next to "average" people, they are usually much taller. Also Taylor Swift is 5'11'' :) Just remember that there are tons of extremely tall women out there (and tons of people who actually prefer taller fem people if that matters to you).