I agree with London. If this is what you want - go for it. The opinions of people that don't care about you are irrelevant.
It sounds like there is much more on the line here than just the money aspect. I can't tell based on your posts - have you told your boyfriend about the emotional/kink aspect? Do you think that would make him less uncomfortable if he knew that it was going to fulfill you in addition to provide some needed income? Does he know about your past of professional domme-ing? I'm not sure if this would make things better or worse but it's probably in your best interest to be completely honest with him about this if you haven't been.