I think for the past 2 or 3 seasons, my cow hasn't produced milk. Everytime..

The reason your cow isn't giveing milk is because ever 40 day they have to stop.
If you want to make your cow give milk again you have to do one of 2 things
1 give her a mp mirical potion so she gets pregnet and after she gives birth she will give milk for 40 more days.
2 buy a boy cow wait for I to mature and then wait for it to get your girl cow pregnet
I prefer #1 it's the easyest
Ps mp potions are 2500 and boy cows are 3000
Pss hope I helped

(1) To get your cow to give milk again it has to get pregnant to do this you go to where you order things at and press miracle potion then after it has it's baby (a season) it will make milk again.

(2) Brush him everyday.

(3) Buy crops and grow them. If you have a seed maker plant trees thenh turn fruit into seeds and sell seeds, but don't do that with crops.

Too make some easy money befriend the lady at the inn, give her flowers everyday, after a but a month talk to her while she is in the kitchen of the inn, and she should give you some spices *ruby's spices*. Then go home and go to your kitchen. Choose any opition from the cooking menu and select the spices, and nothing else and by doing that it multiplies the spices so now you should have two and o that until you have 99, but keep always keep one so you can repeat, sell the spices to van the sales man and you should get around 10k.