I forgot to congratulate you. CONGRATULATIONS! I borrowed my teacher’s harp the other day (haven’t got a pedal yet!) and I went NUTS playing all sorts of crazy stuff. I so didn’t want to return it. So have fun!
(And…I have played a gig with a blister. Not fun, but it worked. Depening on which finger it is, on which hand, and how difficult your pieces are, you might be able to adjust your fingering.)