Recovery only looks like progress when you stand far enough back. Close up it is uneven, and a worse week does not undo the better ones before it. The part that adds up is the showing up, which keeps happening whether or not the numbers cooperate. A dip with attendance in it is nothing like a dip without.

Track attendance rather than performance for a while: sessions done, exercises finished, days you turned up. Look at it monthly instead of daily. If a dip runs on for longer than a few weeks, that is worth mentioning to whoever is helping you.