This is a great question. TCA Cross is a treatment not commonly done well.
Generally the treatment is completed very quickly but should be done very specific to the scar, and avoid excessive spillage of the acid into the surrounding normal skin.
Looking at your picture, it is consistent with the usual recovery phase, and this can take anything from 7-14 days, and despite that, some mild post TCA hyperpigmentation can persist.
Wound care wise, it is just about normal skin care, applying adequate moisturiser, sunblock (super important) and waiting for it to settle down. applying hourly creams is NOT going to be helpful in TCA recovery.
So I would say, recovery is quite predictable, but it is results that is less predictable
Winston