My bullets do nothing to them, yet I get killed quick

@Player_7i1r8fth apex has a very steep learning curve, I'm many seasons in and still trying to get to grips with it.

The recoil patterns in the guns are very difficult to control. If you go into the range and just shoot a wall with each gun the pattern is obvious. Try a bit of moving around too with the dummies. You can work on getting the right m&k settings that suit you here too. 

After getting to grips with the recoil patterns, I would head into mixtape where you'll be able try out a fighting situation without really worrying about getting killed, as its rince repeat. 🥳 and building up your confidence, habitat 4 is my favorite there.

Then you really need to learn the maps, to work out possible rotations, etc.

Ranked games seem to favor teamwork, more so than pubs. 

Best of luck. 

its well known that some servers despite you connecting with a decent ping have severe issues with the hit detection, there are quite some examples on YT that describe your experience