Why am i still alive?

i am way to young and healthy to die i am 20 and very athletic. i was driving my car and fell asleep for about 10 seconds on the highway and slid past the fast lane into the slanted gr in the center and slid down it like a bob sled going 65 went through three trees. i woke up right when the car started to go into the snow and i grabbed the breaks and steered the car down the hill as slowly as i could holding my breaks down i went through 3 trees 4 times the width of me they all shattered. the car was in pieces. the airbag never went off but i never felt any pressure about 20 pounds of pressure in the leg that was not on break pedal the break pedal absored that in the other leg. no pain at all my head did not even move chair barely moved. yet my engine shot over my head after hiting the first tree. this was a toyota solara 2001 v6 se. so for all of you who own this car as a live crash dummy i rate it 5 stars for saftey so its looks is not its it best feature its amazing. i doubt if i was in any other car like a dodge or something i would be typing right now. i felt absolutely nothing less. force in that crash then in your typical bumper car tap. so keep this car if you own it. maybe it will save your life. but the reason i fell asleep at the wheel is because at night i dont sleep enough because i am still like a 14 year old in maturity i just am not mature enough to go to bed early i never get my hw done in time to go to bed i am suffering at college because i am in the wrong major and i love to have fun with my friends and play video games so i play until i p out at night. so now i do all my hw at night because thats when i perform the best and because of this i struggle a bit to be fully their in cl and aparently it almost took my life today. why am i still alive? is their something or many things i am meant to do before i die that i have not done yet so i was spared? how can i change so i develop to be who i am supposed to be and do? i guess sleeping at night is a start. how can i change my sleep patern? and what else is their for recommendations?