My accent in Spanish is weird af - or at least, I think it is. My Spanish teachers said it was good, but I never trusted them on that.
Weirdly, despite there being no point in the Welsh language where you have to roll your r's, everyone does it accidentally from time to time - even my Welsh teachers used to do it, randomly, and then not do it the next time they said the same word. It's so weird - like your mouth has decided it's gonna have a party with this word whether you like it or not! Lol.