What do you think of my Keyboard & Mouse FPS Warm Up/Training?

Hi guys! I'm currently making the switch to KBM from controller.

I'm mainly a Fortnite player at the moment so I guess my goal is to be just as good (or better) with KBM as I was with my Scuf Controller.

This is my current warm up:

• About 20 Mins on Kovaak's FPS Trainer
  (Steam Link: https://store.steampowered.com/app/824270/KovaaKs_FPS_Aim_Trainer/)
  

• About 20 Mins in Fortnite Playground - focusing on building mainly

• Then I jump into general gameplay

I still feel like long with range AR tap fire (even with the Gold Scar) I find I can't seem to get a dead aim shot. With shotguns I can't seem to track my opponents properly - particularly when they get close up.

Does anyone have any additional tips or training programs I can try? I found AimBooster is still a bit beyond me at the moment.