Hello Callaina,
Thank you for replying I think I am going to change my mind and would like Be a perfectionist to be translated into Classical Latin, sorry for any inconveniences,
J.M
I would rather incline toward some sort of phraseological expression like (optimi) perfectionem (atque absolutionem)* persequere
or (quidquid agis) prudentissime (ac diligentissime) agas prudentissimus atque diligentissimus esto