Quote from MeAnurse?
I'm really worried about the math and science classes... school was never easy for me... I haven't been in a basic math or science class since highschool (8 years). Is it realistic for me to make such a drastic move...
If by "realistic" you mean quitting your stable, well-benefited job to go to undertake a course of study in which you have previously struggled even before your academic skills atrophied, my answer is, "No, it really isn't." In fact, I think it would be downright foolish.
If, however, you mean setting nursing as a 5-year goal - and you plan to start with a class or two taken in the evening while you keep your job and get a sense of how you'll do - sure, that's totally realistic.
As far as men in L&D, they are a rarity - mostly due to self-selection, I'm guessing. I've never met one, actually, but I have heard of a couple in circles which overlap my own so they are out there. I imagine that it will be a challenge to get past a lot of people's biases but you have one huge advantage: Being memorable by being so unique.