Those figures are very optimistic, people that applied ~19 years ago (F4) and ~9.5 years ago (F2B) are only now eligible for visas. But the wait times are getting longer and longer going forward. Bear in mind F4 category has only moved forward 3 years in the past 10 years, and F2B 10 months in 3 years. I think that @Boiler’s general rule to manage expectations is to double the amount of time on the current bulletin, so 20/40 years ish.
So I’d strongly advise the OP to only use family sponsorship as a back up (particularly as there’s a risk Trump scraps it), and as well as his/her relatives petitioning, should try for OPT followed by an employment based visa.