First time dui in LA County.

Throwaway account.
Was pulled over in Los Angeles County a few days ago.

I (32m) went out with the gf dancing, drank in the parking lot before going in. Danced. We got tired, she was starting to feel ill and so went home.
I felt fine before heading out.

Pulled over for speeding, ticket says 90+ for speed.
I was internally panicking. I have never been in trouble with the law before.
They asked what I was doing, I informed the officer we were out at a club. They asked if I had anything to drink, I said yes and I had three.
Gf had three for herself as well. She threw up outside the car.

Did a field sobriety test and was freaking out the entire time, was really nervous and I messed up during the standing leg test and messed up during the heel toe. I was shaking for the single leg and even put my foot down for a bit. Don't think there was anything wrong with HGN. Nothing was mentioned.
The heel toe test was fine till maybe step 6 on the return path.
PAS showed 0.083. Cuffs were placed on me, car was searched. Car gets towed. Gf called a friend to get her.

Was taken to the station which was about a 20 minute drive and blew a 0.07 both times at the station. Wasn't given a print out of this.
There were two officers, one was regular. The other was nice. We talked a bit at the station. Was released about an hour later, only if someone picked me up.

I feel stressed out since I know I must look like I was under the influence.
Money is tight and I don't think I can afford a lawyer. Plan on requesting a public defender.
Have a DMV hearing for May. Court hearing is in July.

I would like to know what I should expect.