OMG this must be so hard for you.
Some courts have safety guidelines so if you ring the court & tell them of your concerns they won't make you wait in the same room etc before being called up.
I would definitely take the evidence with you regardless of whether you wish to use it or not.
It all seems very sudden?
Can't offer much advise re. a lawyer last minute but the courthouse should be able to guide you there, ring & talk to them.
I'm so sorry you don't have a support person to go with you.
I'm sure others will be along to offer advise.
Thinking of you & sending hugs & good for you for finally standing up to your abuser, he should not get away with this.