Actually, I had a similar experience. For that reason, I decided to work on a side project precisely to encourage people to get started lifting weights and lose the fear of going to the gym: https://ezworkout.org
That is slick! I'll be using this next time I go to the gym. One of the big problems it solves for me is boredom - I lifted for a couple years but couldn't stand doing the same workouts week adter week. I do realize you're supposed to switch it up, but your app makes it easy :)