Is there anything that you can do better without even trying?

They say practice makes perfect, but recently I’ve realized that the more I try to do something, the worse it ends up. For example, I bought a big cabinet for $12 at the thrift store to go in my bedroom. Since it was so cheap, I decided to make it awesome and spraypaint it rainbow with black zebra print over it (sounds stupid, but it looks pretty cool). When I first started painting I tried to be super careful with letting everything dry and covering each area so the spray paint wouldn’t get on the other colors, and I tried to carefully place the stencil each time so it wouldn’t smear black everywhere, doing this made it a 2 day project, and it was a huge disaster that resulted in spraypainted grass and mostly a big mess. So I painted it white and started the process again, by this time I was kind of sick of doing it but I couldn’t leave it in the front yard too long so I said fuck it and painted all the pieces in one shot with only a 5min wait between rainbow and black for it to semi dry, didnt really care about where I placed the stencil and just kind of winged it, finished in 45 min and it turned out awesome.
Since then I have noticed that the less effort I put into doing something, the better it ends up being, and the harder I try the worse it gets.
Does anyone else have this issue?