down and out.

I have a 95 sentra and it's has it far share of lost and win but one night I raced a acura integra 95 with mods I got dusted but I new it would happen but the next morning my car wouldn't start is it cause it's ashamed (lol) or could my Alternator if so what could I do.

we need more info than "it doesn't start" to diagnose the problem

does it crank? If so does it crank slowly or the same speed as normal

it does not crank start or make a sound

Then your battery is dead, if you have a battery charger then hook that up to charge the batt fully and try again. You can also get a jump start from someone and then make sure you drive around for a while so the alternator has a chance to charge it back up. If your car does the same thing again in a couple days or a week then 1 of two things could have happened:
1 - the battery can no longer hold a charge, possibly due to draining it all the way and then recharging (this kills the cells in a typical car battery)
2 - your alternator died and can no longer charge up your battery (this can also cause #1 to happen)

maybe the starter...maybe

I tried another battery and it still doesn't work

please help