stop looking for quick ways to improve, just play more, watch your demos and see what mistakes you're making.

If its not obvious as to what mistakes you're making, watch demos of fpl players, or something like that.

watch pugs because you cant really use the infomation that two big teams fighting against each others.

simply because that is not a situation you'll find yourself in when it comes to pugs (faceit).

it doesnt have to be of a pro player, just pick a random fpl player and watch what hes doing, just to get a feel for what you could be / is doing wrong.

stuff like game sense is something you cant practice specifically, unlike aim.
as annoying as it is, its just something you have to come to terms with.

the only ways to improve when it comes to game sense is
#1. play more
#2. watch demos

reaction time is mostly genetics but you can improve it by 10% ish

heres a link to another guide which goes more in to detail with this topic
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1231641512