How can I change my status, if I´m in the country as a tourist, but my husband is getting his opt?

File an application for change of status I-539, from B2 to F2. If you have no visa, you cannot change status.

Travel overseas while I-130 process

Let your lawyer know how to reach you.

10 years or permanent ban for missing individual hearing

There is a 10 year bar for a deportation, and for missing a hearing. Not a lifetime bar.

You do not need to live together, but you do need to prove the marriage is in good faith and not just for immigration. Get a very good lawyer.

I130 repeat petitioner

If the couple divorces, the I-130 is void, and you need to refile. If the I-130 is actually issued, and you want a new visa, you need to...

GC application without I-94

Yes.

Will they deny my resident alien card renewal if I'm on SSI?

No.

Naturalization Process and Selective Service

You will need an affidavit regarding your failure to register. Since you did not know you were required to register, it should not be a problem.

Currently working on opt-extension with company ABC, unfortunaltely due to some finincial crisis they are not paying me.

You are not in violation of status, if that is your question.

Failure of prosecutor

Check the actual judge's order. If the NTA was properly served, you may have to file for adjustment at the immigration court. Regarding consular...