When a Commissioner, Judge sign an arrest warrant and give to a police agency can that judge recall the entire warrant?

Something’s amiss here, but I think it’s your misunderstanding of whatever happened.

In California, can I sub out a public defender for myself without the judge’s permission?

You’ll need the court's approval.

Can a detective talk about my case to his nephew that I know and his friend about my open case

Sure. It’s a free country.

Can I ask for a 2nd continuance for my 2 DUI cases?

Sure you can ask but it doesn’t take that long to hire a lawyer.

Unclear. Ask someone at the jail.

Will I be arrested if I have a felony warrant that was issued for not reporting to probation?

When will you contact your lawyer? You could be arrested at any time.

What can I do to cancel the bail bondsman contract signed by me? It was a con job ? Do I need a lawyer? Client going to run.

It’s too late to cancel the bail bond contract. The bondsman didn’t con you, she did.

How many days credit will be taken from someone sentence of 90 days and Also they will get Sheriff parole program? How many days

50%, give or take. Probably serves 45 days or a couple less.

Retroactively admitting accidental probation violation. To do or not to do?

You have a probation officer on a misdemeanor grant of probation? Speak to your lawyer before doing anything!

Is this prostitution?

Sounds like there's an exchange of money for sex.....