How long misdemeanors case take it to be free?

Your question seems to suggest you have something on your criminal record (possibly disorderly conduct?) and want it removed? If something is on...

Is there a standard guideline when someone is getting sentenced on a criminal case?

There are federal sentencing guidelines.

If the statue of limitations runs out on a murder charge, and the victim confesses, will they get off completely free?

Generally there is no statute of limitations on a murder charge.

Generally no, you cannot have that sentence changed from jail to houre arrest

Do I have a right to a different prosecutor if I have a past history with him.?

No you don’t have a right to a different prosecutor. Prosecutors often charge repeat offenders .

Each unauthorized use of a credit card will be a separate offense.

Cruel and unusual punishment. ?

Although it may be police misconduct (certainly not the right thing to do), but as far as “cruel and unusual punishment”....doubtful.

Can a convicted felon, although not on probation, be convicted for the possession of a "BB " gun and, or, a "pellet " gun?

Every state has different firearm laws, prohibitions, etc. It is best to be safe and not possess this type of weapon

Can i tell my mothers probation officer i no longer want her at this address.

You can simply tell the probation officer, or just tell you mother she can’t come over any longer

How do i report the prosecutor for prosecutorial misconduct?

Everything you describe is normal practice for prosecutors. There does not appear to be any ethical violation here.