aggravated assault with a deadly weapon?

i was arrested on march 5th for aggravated assault with a deadly weapon and disorderly conduct.

me and my GF were sitting in a right hand turning lane waiting for a funeral procession to go through the intersection when a big suv came up behind us and became impatient, they start honking and and yelling and flipping us off out of their windows, when they tried to come off the road and up to the driver side of our car, me not wanting to be next to them i took off, they sped up to us again on the driver side, and when they caught up to us the passenger was hanging waist deep out of his window and yelling for me to pull over and that he just got out of prison and he was gonna **** my GF and all kinds of other ****, well me being scared he was gonna try something i pulled out my gun and set it on my lap (just to let them know i was armed and to back off) well when they seen me pull out my gun they slammed on the brakes and called the police.

they told the police i pointed the gun at them and tried to shoot them but

after they backed off, i put my gun back in my holster and continued to my nephews birthday party. a few miles down the road all of peoria police were behind us yelling for us to get out of the car and on the ground.

after explaing to the police what happened and that i was protecting me and my gf they took me to jail where i sat for 2 months!

well now im on house arrest and facing either taking a felony plea bargain or taking it to trial in which if i lose im facing 5 to 15 years in prison.

does anybody have any advice or experience???

im a usmc veteran, im going to school to get my criminal justice degree (because i wanted to be a police officer) but the justice system is so screwed idk if i want to be associated with it...

but taking a felony plea bargain would screw up my chances for ever getting back into the military or becoming a police officer, let alone getting any good job or into any decent apartments, im 22 years old and a felony would pretty much screw me for the rest fo my life but so would 5 to 15 in prison

my lawyer isnt really helping me all that much and he is pressuring me to take the plea agreement... so i dont know what to do. please help!