Should I give blood tomorrow?

There's a blood drive at my church tomorrow and I'm finally 17, so I thought it would be perfect! But the next day I am leaving for a 4-day Medcamp and I've been looking forward to it FOREVER!--Is there any chance I will end up feeling fatigued/tired/sick on Monday if I give Sunday? I don't want to mess anything up just because I'm a tad impulsive and can't wait for another chance!! AHH!! haha... Oh and also if it matters, I am a girl, 130lbs, pretty darn healthy except for being treated for allergies, anxiety, and depression, and sometimes I feel fatigued...but it's been getting much better! Am I ok to go through with it? Also I don't know if my mom will let me...she's kind of protective and thinks I'm kind of a susceptible/weak kid because of ^description above. But I'm doing well! Thanks!!