Sometimes You Can't Win
You will occasionally meet a cheater or someone much better than you or in an opponent in a completely superior tactical position that you will have no chance to survive.
Suck it up, think about what you could have done better, and hope the lesson sticks next time.
As far as cheaters, I've met them occassionally in this game, but its pretty rare. Way better than pubg. I mean waaaayyyy better than pubg. Like I don't play pubg anymore cause the cheating was so bad.