You can use the esp to get comfortable to have the right crosshair position as i did. When you use the esp you learn where the enemies heads will be and where they will show up. Then eventually you will be able to play without esp. Anyways, if you want to practise more aim, then use a really low fov aimbot and use mostly your own aim. When you get better, lower the fov and in the end you can try to play without the aimbot. It's hard to learn how to bhop through cheating as it requires perfect timing, the best way to practise is by binding your scroll wheel to jump and then just practise hitting hops.