My PERIOD?? Please help! I'm young and need help!?

I got my first period and for the first 5 or 6 days it was light and then it stopped for less than a day and came back and the flow was normal. Now it's REALLY HEAVY! I have bad cramps too! Is there anything wrong with this and what can I do to not be tired, get rid of cramps, and make it go away faster? And what should I eat and all advice is accepted!!n Thanks sooo much