In case you want to finish your Wrapped in Jamie project at the end of Season 1 of the CAL, here are two ideas you may want to consider for your squares.
Using them will be beneficial for the correct stitch count for a suggested border.
To use the border I designed for Season 1, I recommend a join that keeps the squares close together.
The Project Border is flexible to be used for a 2 x 6 or a 3 x 4 squares layout or even for 1 x 12 with only 1 stitch added above the join in the first round.