Go tight against loose players and go loose against tight players
How can this be possible?

If tight is better than loose, how can loose be better than tight as well?
This logic confuses me a lot.

Say, I go tight against a loose guy, and fold a lot of pots to him. He wins a lot of undeserved pots and I just wait and wait and hope until I get a hand and when I do and I raise, he just folds or gets a better hand than me and screws me over.

(And i'm not that good at being loose and making big bluffs so I get screwed over when I try to go loose against tight guys)

Any opinions?