This might seem obvious, but when I’m working with clients, I’m noticing that very few people know how to do a proper wall sit. One way to MAKE yourself have good form is to grab a book and a glass of water, and rest them on your legs. If you aren’t sitting against the wall at 90 degrees, and maintaining that form, your water will spill. Might seem drastic, but it works and I’ve noticed 99% improvement with my clients when they try this. Go ahead, try again :)
Back against the wall, knees at 90 degrees, shoes preferred so your feet don’t slip, and SIT!
How did you do? Improve form? Time? Keep at this for 30 days and I bet you’ll see your time double!