Just keep checking back, even 1-2x/day helps. No need to be obsessive about refreshing, or go so far as to run the script that checks for interview times, unless you really want to. Slots are always opening up as people cancel. I got conditional approval in early July and the soonest interview was October. Just checking in 1-2x/day, within a few days I had rescheduled it to September. A few days later, August. Then a few days later on a Saturday, a slot opened up for the following Monday. Total time from conditional approval to interview less than two weeks.