I need advice

Sara
Okay so being a girl and not wanting to deal with her period over the summer, I skipped the placebo pills for June and July and the past week I been spotting and someone on her told me it was break through bleeding. So I was like okay cool I'll just take the placebo pill this month and get my period . But the problem is I just started school and my friend skipped the placebo for June and when she got her period in July it lasted 2 weeks and was extremely heavy. So should I just skip it until I have a break from school or just take it? And if I take it will my period be heavy and last longer than usual ?