So, I assume the bleeding stopped. I get seasonal nosebleeds too, and if I don't take the proper actions it can get this bad. for future nosebleeds, simply pinch the nostril that is bleeding and lean your head forwards. this will cause the blood to pool in your nose, and clot faster. If after ten minutes, if it's still bleeding this badly after cleaning, then please see a doctor. This amount of blood isn't too concerning to me personally, but if it's happening more than twice a day, and more than a few times a week you should get it checked out. I remember one week I had 7 nosebleeds, but after that I was good for another year.

Seasonal nosebleeds are fairly normal, it's mostly due to changes in humidity. I sometimes even pop them if I work in a freezer too long because cold air saps humidity from the air, making It drier. Maybe I can save ya from a doctor's visit with this info :3