Originally Posted by Demise

F2B is currently backlogged about 5 years 5 months. 21 years 4 months for Mexico, 10 years 2 months for Philippines.
F4 is currently backlogged about 12 years 8 months. 14 years 7 months for India, 21 years 3 months for Mexico, 19 years 3 months for Philippines.

So F2B will most likely be faster. You can also have both file I-130s for you and just go with whichever will be faster. If you are covered under 245(i) you will be able to adjust in US, if not you will need an I-601A via your mother.

Alternatively you can seek employment sponsorship (EB-3 is currently backlogged about 3 years and those backlogs never last), EB-1, EB-2, and EB-4 are current. Again you'd either need 245(i) or I-601A.

Final option is to play the DV Lottery if you're from an eligible country. Since it's lumped with preference categories you can similarly file for adjustment using 245(i) or seek an I-601A waiver via your mother if you win.