Yeah, I certainly wouldn't want to repay for the same game.
I cringe every time I see something about mods being installed, because support options are limited and you don't know if you truly got everything uninstalled. It's not just files that get installed/uninstalled; it's also system configs (e.g. registry).
Before going that route, make sure you've uninstalled all the launchers - Steam, Origin, EA app, etc. - then reinstall Steam and the game. Your post suggests you purchased via Steam. If not, leave that out of the equation.
