Severe bloody nose

Ok heres what happened: I woke up this morning and sneezed. the next thing I know, blood is pouring (literally) out of my nose! I run to the bathroom and empty my hands into the sink. I proceed to bleed there for about five minutes, and then I grabbed a washcloth to try and stop the blood. I wore out two entire washcloths full of blood, no exaggeration! It was so bad that not only was it streaming out of my mouth, but that passage that connects mouth and throat was also giving a steady stream of blood! I was gagging on my own blood!! I looked in the sink after hacking another blob out (the first couple times I swallowed it but then it made me feel kind of woozy) and I poked it because it looked dark, and it was like jiggly and put together, not runny like blood should be!! I didnt have my contacts in at the time, so they all could have been like that, but I didnt see them. I tried laying down, and I only coughed on my mouth blood!!! I finally stopped it by putting extreme pressure on my nose and breathing out of my mouth, and then when I felt it slowing, I started breathing into my nose and out of my mouth but when breathing out, I reapplied the pressure. that seemed to do the trick. when I was done bleeding, I put my contacts in and looked around. the toilet was full of blood, like as blood red as real, unwatered blood! The sink was also full, and the floor and my hands, chest, arms, chin, lips, and the area between my nose and mouth was all covered in blood!!! I looked like I just killed someone, especially if you looked in the bathroom. I brushed my teeth and went to type this. what can I do next time to avoid losing so much blood? I honestly estimate about a pint)