You should speak to a local attorney from your area for an analysis of your case.

Can a judge make you pick a jury in a criminal trial without an attorney

You have the right to an attorney even if you can't afford one.

If a car is in my name, even the tag, is it illegal to cause any damage to my vehicle?

Not sure what you mean by threatening to do damage to the vehicle.

Can someone legally blackmail you for sexual photos with the threat of suing you for a car accident that happened a year ago?

Of course it is not legal you can file a police report against him and then report to your insurer.

Given these charges Can a person attend rehav in leiu of fines and jail?

Its possible but it depends really on the person's prior record score.

Can I be be charged with careless/ reckless driving?

You are going to be charged with more crimes than just that. You need legal help right away and do not speak to police until you do.

Is it okay for

There is a possible claim for invasion of privacy you would have to sit down with a lawyer to examine it.

Will I

If its a notice no but if its a subpoena then yes.

There is a way to stop the person civilly through the TRO process

Do i fight my case

Have to know more the charges don't mean anything it the affidavit of probable cause the cops wrote that needs to be examined.