Hey, after not playing the game for 2 years and coming back recently I found myself at the lower tier of player when I started.
My first 2/3 weeks i was going negative in almost all my games. But, I quickly remembered the importance of team shotting, not peaking when your health is low, running away when necessary, and try your best to focus on headshots for the extra damage. Use your abilities to your advantage, an opening grenade/melee ability could help massively in certain situations
Also if you’re on PC, try to plug in a controller and see how it feels compared to KBM. The auto aim could help you greatly.
hope this helps a little, good luck!
Sorry for a long wait in replying, I did give this a try, but the problem might lie within my controller since I don't usually use a controller for pvp games, not to mention its a steam one, I'm not too sure if it's meant to be harder but I found the controller always seems to be super sensitive and hard to control, either that or I'm just not used to using a controller for Destiny, but still, thank you for the other advice! ❤