Has anyone used an eyelash curler?

I've bought and tried various eyelash curler brands that are supposed to be good, but whether it's because I have clumsy hands or the curvature just doesn't suit me, my eyelashes just wouldn't curl up properly. So, I heard about eyelash irons and bought one to try, but even with that, I'm not sure if I'm using it wrong or if I'm using it in the wrong order, but my eyelashes didn't curl up as well or hold as well as I expected.

If anyone uses an eyelash curler, please let me know if you have any tips. 😭 Or, please share your secrets for curling your lashes well without one, or how to use an eyelash curler! 😭