Boots or walking shoes in September?

Foot Ache

How long did you try to break them in?

if you are comfortable they are broken in, and they still make your feet ache, and you want to salvage the purchase, an obvious suggestion would be to change out the insoles for another, different pair. If this does not work, start over. At least consider that the tread of the Camino is not so severe as to demand much beyond a pair of low-cut hiking, or even jogging shoes. So, wear what you are comfortable in. many even do it in hiking sandals. many do it in heavy, stiffer boots. Go with what makes you comfortable, but whatever you take-even for sandals, make sure they are well broken in.