Most likely scenario is that the car would be repossessed (assuming that it stands as collateral for the loan.) Nothing you have described is a...

How can I get my right back

Time for you to hire an attorney. Apply for legal aid if you need help.

Want to file for divorce and custody here in Texas but husband and children are living in Washington State. Is this possible?

You will need to file where the children are. (Or have been for past 6 months.)

In Taylor County Texas, will a judge allow the termination of parental rights without an immediate stepparent adoption?

Talk to a local attorney. You are going to need an attorney to handle both actions.

Family

You don't mention your age. In Texas you cannot decide where to live until you turn 18. You might want to Google "Emancipation of a Minor in...

Violating a Child Protective Order

You should probably quit talking about this and hire an attorney. Best of luck.

How do i get a car that i had to put in the shop more then 6 times in a year after buying it brand new off my credit?

No magic bullet. To be blunt, you probably did this in the manner that would cause you the most harm. Time to talk to a consumer law attorney...

Can I go get a vehicle that was awarded to my ex if it's in my name & he's not paying for it? He was ordered to refi by 12/2014.

Common occurrence in DIY divorces. You are still "in business" with your ex. Most attorneys would have advised you to avoid this trap. Advice...

Can I legally change my daughters last name without their biological father's permission?

Bio dad has to get notice of everything. Talk to an attorney about trying to get a termination of rights.

Do I have a say so in whom would care for my child in the event of my passing or would they automatically go to their bio father

Probably so. Depends on the circumstances but, generally, you cannot usurp his rights to the children through a will or estate plan.