I would say, if that worked for you you should take all the credit. You’re the one who is doing the magick and making it work, and allowing it to work when it’s done for you. There are schools of through that say that everything is just hooks for our minds to work off and there is nothing outside the self. I’m not of that school but I get the point and do agree the practitioner is paramount, and that’s you in any case.
It’s called “banish and cleanse.”
There are many ways to do this, they all operate by removing unwanted energy of any kind, entity or residual, from both you (cleanse) and your space (banish).
We have a bunch of information here, seeing as you’re newer, I’d recommend reading through this lot to familiarise yourself with a bunch of these idea, and then pick the ones that appeal to your energy the most - they’ll be easier and more successful that way.
For example, some people banish via the LBRP, and it’s powerful, but me, I prefer to smudge and use my own sovereignty.
If you identify specific entities you don’t want around then we have more targeted workings for that: