Maybe, but in any case, there are motives to do all kinds of things, but I decide what to do, and the reason for that decision is precisely that I want it that way, that is, my will (want = will).

I drink or I don't drink, I do this thing or I do that, because I decided to do so, because I want to, and that is my will. There may be motives to do one thing or another, but ultimately, I do them because I want to.