I don't know if this is worth posting or not - but here goes.
I do see a lot of people, milking goats and cattle, feeling obliged to take all the milk and then use it. That is a lot of work and a lot of strain on sore hands and joints. It is also a massive commitment and tie.
I do it the other way about. I take the milk I want for the house (or pet lambs or whatever else may need some - but not other calves, read on) and then I let the calves take the remainder. When her own calf and its foster-sibling are weaned, the cow gets another pair, when they are weaned, she gets a third pair. Then she rests before she has her next calf. If I don't need any milk one day, I simply let the calves straight on her. If I want to be away for a day or two, even a week, she just gets left out with the calves.
Granted, you need a very maternal cow or goat to keep fostering like this, and I don't know if you get goats that will do it. Jerseys are often used as foster mothers because of their propensity to love any calf and feed it - once it smells of her milk (takes between 7 and 12 days usually, during which time the calf suckles after I milk and while the cow is still tied up) Hillie thinks it's hers and loves it.
I started this right from her very first calf - she calved, I milked her straight away; the very next day we got a foster calf to run with her own calf. So she's never known it any different.
Here she is with her current pair (2nd pair of 2nd lactation):