Has anyone here gone from bad at painting to good?

I know that practice can make you better and all, but I feel like you just need to have that "artistic gene" in you, where you have good motor skills, good sense of color, good sense of perspective, and build off of that.

I feel like someone who just doesn't have that (me) can make marginal improvements to his artwork but will never actually become good at painting.

I tried many times to paint but I can't seem to make thin lines, I can't seem to recreate colors, everything looks like a mess. Whereas I saw other people make much better art on their first try.

I still like doing it because it makes me happy but I'm worried that I'll never actually make anything good.

I also don't know if things like brush, paint, canvas quality affect things. I feel like I do the same exact things as the tutorial and mine looks so messy and bad.

Please be brutally honest about your opinion.