My advice is to restart with Arch (I use Arch btw). Not Manjaro, I’m talking Arch.
I think using/installing Arch as well as its barebones nature FORCES you to understand how Linux works differently than Windows with concepts like root, bootloader, terminal emulation, and disk partitioning, just to give you some examples. At the same time, Arch has excellent documentation, a great package manager in pacman, and rolling release model that greatly simplifies maintainance during daily use so you can tune it to exactly how you want it.
I believe doing it the hard way at first will make it easier for you in the long run if you really want to understand Linux, and Arch is just the right amount of difficult to make you learn Linux, whereas Gentoo would be too hard and you don’t learn enough from using Ubuntu/Debian/Mint.
But yeah, if you just want to use something that works well out of the box, then Ubuntu is great, there’s nothing wrong with using the more user friendly distros.