You can resume an activity without trying to recover every missed week at once.

Returning to something after a gap brings a debt with it, or so it feels. The instinct is to make up the lost ground quickly, which means beginning at a level you no longer have and turning the return into a punishment. Most returns end there, not because the thing was wrong but because the entry was made too steep.

Restart at a size that would have felt easy even at your best. Do that version several times without judging it, and let the ground come back on its own rather than paying it off in a week.