I was tempted to post a lengthy reply but I see Aspx has done a good job so I will limit myself to a few key points:

You should spend more time doing sessions and less time fantasizing about what is going on in other people's sessions. If money is tight then limit yourself to hour long single domme sessions.

However one extravagance you should indulge in is to do a Forced Bi session (I am guessing that you have not because you remind me of this ad: https://www.youtube.com/watch?v=Aq_1l316ow8 ) The reason I say extravagance is that my understanding (never done it myself) is that nearly all dommes charge extra for it (in some cases a lot extra)

"t seems to me that it is simply a somewhat smaller number of situations that happen with a surprise extra guy visit"

The "somewhat" is total BS the corrected version is:

"t seems to me that it is a two orders of magnitude smaller number of situations that happen with a surprise extra guy "visit