Banishing ritual question

[Ishtar]

I have been feeling a lot of negative enrgy in my room lately, the moment I get in my room I feel a litle depression and am to tired to do any meditation (eventhough I have planned it for the whole day).
I see you should do the banishing ritual at sutarday at waning moon, can I also do this any other day at any sign?(so that a lot of the negative energy goes away. Anyone has more suggestion at filtering the negative energy? I have also tried to burn it with blue electric flames but I still got the feeling.

thanks

Hail Satan!!!