GIRLS ONLY! Please click I need ur help!?

So this is my third period and I'm in turkey and It's super hot and I can't swim! The blood is so super heavy it's the fourth day and I have to use 2 super thick pads a day so I wont leak! I can't use a tampon my parents say I'll lose my virginity then! I took a shower and suddenly 1 minute later everything was ieuwie again! My first one lasted 10/11 days, second 6 how long will this one last it was 4 days of extreme bleeding! And It's so hot here and the only activity here to do is swimming:'( PLEASE HELP THANKS SO MUCH I'M 13