After the first $1000 / month I started caring a lot less, because I could eat and pay rent. After $2000 I stopped caring some more, because that is enough for

After the first $1000 / month I started caring a lot less, because I could eat and pay rent. After $2000 I stopped caring some more, because that is enough for budget travel, which is the biggest "thing" I want. Now I've found my next motivation to be "for each extra $2000 I make, I can have these things some month in the future when I've lost my revenue source".