What banishings do you do to make sure you don't have external influences affecting you when you attempt to divine? i used to not really think much about it and I would just shuffle a bunch and let my tarot cards talk to me (basically shuffle until they said it was enough), but my reads got pretty unreliable once I moved. It got hard to 'hear' my cards and I started 'hearing' a lot of other things so I've been taking a break.
I also figured that even if there were 'external influences', then those things would probably affect me outside of the read so 'external influences' makes up part of the situation I was doing a read on in the first place. But I usually didn't do readings that had an 'external influences' card.
find the star kochab and start playing beyblade while meditating on it.
Banishings generally aren't my style. I've always tried to cultivate space that selects for what I want. Influences that return are of the quality I desire, if for no other reason than that I can depend on them being there for me in the future. I don't know how you could do divination without aligning yourself with a flux of influences in the first place, so I don't understand what your concern is. Everything affects everything else through cascading events anyway, so why would slicing off a portion give you a better feel? If I was interested in a precise science of knowledge I wouldn't be divining with cards. Best to order influences through an intensive series, but I prefer to just have the order they present when I'm asking. I'm not sure what purpose an external influence card would serve. I always incorporate the card at the bottom of my deck in my own spreads and other wise as either a bit of extra information I might want to know, or a clarification about some aspect of the reading. At the end of the day you have to trust in chance, and if you don't, what is it you think you're tapping into?
I would consider a much greater concern to be exhausting the favour of what it is I've selected for by asking the same things over and over, or asking too often in general. When your answers seem wrong you might have tired out the forces. it might just be time to take break like you're doing.
I know there are a lot of practitioners of divination who choose to commune with specific sets of entities if not a particular one to do their divining. Some people go to great lengths in preparation of their materials for the specific reason thet they want to select fo those things specifically and keep out influences that might not share their interest. What exactly is chance to you and why would it be something reliable to tap into?
It is the happening element that connects everything. The crease along which reality is folded