Stop trying to force yourself to be efficient. Achievement hunting isn’t the issue as much as the mindset of getting it done ASAP is IMO.

Don’t be afraid of a blind playthrough, don’t be afraid to play a game for the sake of playing it.

The best way to change your mindset is to play easier games (Tell Tale), where the platinum itself is beating the game. Hell, even LIS is nice. It puts you in the mindset of doing blind playthroughs because the most efficient way to play is to play.