I'm not sure why you'd stop playing controller if you're used to it already. I used a controller since 2.0's release on PC and it's been great. Keyboard for if I wanna talk, mouse if I need to precision click on something but everything else has been hunky-dory. I'm pretty sure you can just plug your controller straight into the PC if its a standard ps4 one.

Good on you for trying to learn a new way, but controller vs mouse has no real winner in terms of gameplay.