Birth Control Pill Tips?

Meredith
Hey ladies! I'm 16 and just starting birth control for the first time. I'm taking the pill and I literally just picked up the meds today. My mom told me to start when my period begins and guess what... My period just started unexpectedly! 
I'm taking it to help with acne, cramps, regulating my cycle, and lightening my flow. I consoluted with my doctor and she said those are valid reasons and all things it will help. I'm not having sex yet and don't plan on doing so for at LEAST 6 months. 
So I was wondering what are some tips from you older, more experienced ladies? What do you wish you knew or what helps you with your birth control, etc. 
Thank you for the help!! xxx