Don't customize shit. Once your tweak one thing it might work for a month or 6 months or longer but at some point it WILL be the domino that fucks your system. I've tweaked everything endlessly for years. Now I run damn near stock. Tired of fixing shit.
Edit: doesn't matter if you document what you tweaked. Files and folders move, layouts change, code changes. You lose items, updates happen. There is no stable tweak ever. Eventually something will happen.
Source: I've ran most common distros and tweaked every one of them. All to wind back up on stock mint. Shit just works.