thats fine a lot of people when they play deathmatches they play for the win not to improve skill- that is wrong
if ur not like REALLY snappy then its normal to die a lot, however there are things u can do
movement: dont stomp around the map trying to clear every angle, people will just prefire you, you could go on YT and just see like tenz and whatnot just run it down running everywhere and tapping everyone, dont worry about that, just make ur goal taking one gunfight at a time and winning every single one of them
try to like gradually clear angles and have a good idea of the spawns- the point of a dm is to practice preaim for comp situations and mostly as a warmup.
unless youre a really low rank and everyone just instantly one taps you, in that case its probably better to use the range and practice target switching on the bots
a tip for the range though hard bots are basically useless if u cant consistently hit them, stick to medium the hard bots are mainly used as a benchmark of ur aim, in actual game situations u would have a good idea of where the enemy is and wouldnt have to flick across the screen for every kill, just put in practice mode and practice ur target switching
if u notice how pros play, they are extremely snappy when it comes to crosshair placement, they would almost instantly flick from one place to another, while always keeping the crosshair at head level of whereever theyre aiming, once youve mastered that you would find urself to win a lot more gunfights