Give them a day or two to "calm down" before you try feeding again. You don't want them to start associating food with stress - you'll just end up with the opposite result of what you are looking for.
That being said - go ahead and offer live prey for now if that is what they will take. At this point in their lives they will flip flop between frozen-thawed and live prey with ease. The same holds true with rats vs. mice for prey - they are young enough that once you get them to take a couple meals they will be happy with whatever you throw their way.
Great job on getting most of them to take frozen thawed right out of the gate like that! Remember patience is the key to everything concerning ball python care.