Once visa issued you meed to wnter by expiration date of Immigrant visa

Is your husband a US Citizen? If so, file I-485 packet and dont worry about changing to F-1

The visa is still valid but you are still subject to inspectoon and refusal of entry of your intent om the specific future trip does not match the...

No you waited 5 years and can file without proving marriage. At interview you will bring US divorce certified copy.

You can and should apply for a renewal. There is no fee - just show them proof of pending I-485 (receipt) and prior card.

You myst wait til FBI background check clears. Could potentially be a lengthy wait.

Selected as the best answer

Go to uscis.gov and click on forms and scroll down to AR-11 form and file online or print and mail. It is not a felony but the form should be filed

The quick answer is yes - that is within the realm of possibility to be removed for those acts

Submit explanation and add financial co-sponsor to system and then upload their docs.

Agree with my colleagues - of you have a situation that they feel is an emergency. ( like death in immediate family) they will expedite in one day.