PLOSIVES don't really get fixed by a pop screen.
The cheap & easy fix is to secure a pencil across the face of your mic. This will "split" the aggressive sound and it won't rattle the diaphragm as much.
Slightly harder is to learn to sing those sounds over or to the side of the mic.
The most effective solution is post recording...using volume automation, (preferably preFX), to reduce the level of the recorded plosive.
If you use Reaper there's a Youtube vid on just how to do the automation - it works equally well for essing too.


Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe