No the LBRP is a banishing, you use that after you have a problem.
Basic protections are permanent, like putting up a fence around your house and locking the doors, or wear a coat to protect you from the cold, you put of shields and wards to protect you from random astral entities and energy flows. As above, so below.
The idea is “an ounce of prevention is worth a pound of cure”.
And as “like attracts like”, knowing you are going out there trolling, you’re going to attract that back to you, so as with doing baneful magick, you need to put up proper protections first. But not in a fearful way, in a common sense way.
We have a lot of tutorials about protections and some here here - try smudging, mirror shielding and wards.