Keep working on C and F chords, especially switching between the two.
Focus on building from low to high on the F chord (lead off with middle finger, then pointer). Test the strings occasionally to reinforce how much pressure it takes to fret the notes well enough for them to ring correctly.
Focus on focusing! Strive for deeper levels of concentration and longer durations of consistent effort.
Try to follow along with the chord dashes to build and reinforce the ideas of measures, counting, strumming the right number of times for each chord, etc.
Practice with the metronome as much as possible, making sure to bring attention to it if necessary.
Lauren:
Keep working on your 5th and 6th string barre chords. Start on the 5th fret for each and gradually work them down to the correct position one half-step at a time, taking time to work on each position individually.
Make sure to build your barre chords from low to high. Try to bundle your non-barring fingers into one set rather than thinking of them as individuals and trying to find the perfect seating for each, do it for all at once as much as possible. Set your fingers, then apply pressure when ready (avoids unnecessary energy expenditure and allows your fingers to shimmy into place).
Try to find the right natural spots for your barring pointer to apply pressure for the required strings for each chord.
Make some significant progress on your Disneyland song in some way. Try to improve aspects you aren't happy with, don't be too precious with the parts and don't be afraid to rewrite or retool as necessary. Songwriting should be fun! Fun or at least a release of the emotion you're expressing, try to tap into that vibe to keep rolling, avoid overthinking and second guessing negative feedback loops.
Dig in to your last few book exercises. Take your time working to the metronome in chunks using the Rule of Five and any issues you may have should work themselves out without too much trouble.