i used to play only swiftplay and dm, until 2 days ago when i started playing comp. its like all my good habits dissapeared, i started crouching more, im aiming at the body and overall playing worse. how do i fix this?

Why is the Ares (and Odin) so extremely hated? I mean, the Ares is strong, especially for its price, but since one headshot is not enough to kill it can be countered quite easily. The Odin, well it is kinda op, but so is the Operator, plus...