I need a new gpu!

Hey guys, its me. I want a new Nvidia RTX 5080 to run games better, im starting to lag on maps like de_ancient and train on counter strike (2), and my fps is dipping under 144fps so its kind of bottlenecking my 144hz monitor :(. would really really help if I can get support so i can have a better experience gaming even tho im supposed to be working...

what im trying to buy