Hint:

Clear your field of stuff before you talk to Mana. Time stops then, so you can get your farm cleared without wasting time in-game.

Also, your house is fully upgraded at the start of the game, with Fridge and Cabinet and everything. So that helps...

...But everything is expensive. And I mean, EVERYTHING.

A friggin' packet of turnip seeds cost like 980 gold. and when you sell some colored grass you find on your field, all you get is like 5 gold. >.>

Boy, earning money is gonna be real "fun" in this game...