a. It is the U.S. policy not to adjust/change/extend the status if a person has entered the U.S. visa-free.
In other word, no matter what you have applied, it will be denied automatically.
b. Spouse of LPR (lawful permanent resident) is under family preference (F2A), which has a waiting time of 18 months. In order to wait for a visa in the U.S., you must have a valid nonimmigrant status.
2. You will be subject to 10-year ban and permanent revocation of your ESTA.