Working during an accelerated BSN program

I will be starting the accelerated BSN program at Johns Hopkins in June. I'm extremely nervous about how much it will all cost (still haven't heard back from financial aid) and am curious of anyone else has worked part-time during an accelerated BSN program? JHU advises against it, but then again, I think all schools and professors error on the side of caution.

I have handled a huge load before. I took 18 hours my last semester of graduate school (including A&P1 and chemistry and two graduate courses), collected data for my master's thesis, wrote my thesis, and worked 20 hours a week. This was stressful, but doable. I do think nursing school will be quite different than anything I've done before, so I'm not sure.

I plan to see how the first summer goes in nursing school and decide if I think I can add in a job, I just wanted to see if anyone has some words of wisdom for me.