Create new game or improve existing game?

Well, there is always a time when you finished your game, you got 2 choice

1. create new game from scratch
2. improve your existing game

Since my existing game is not really fun yet, probably I will add more gameplay into it, including:

1. Happy indicator: where if you work overtime your happiness level will decrease, maybe if drop to -100 then you will suffer hyper depression and commit suicide

2. During overtime, maybe wife will calling
"honey, will you be home tonight?" [YES], [NO]
then maybe show wife happiness, if wife happiness drop to -100 then maybe
"Your wife leaving you " -30 happiness

3. add weekend?
- I am not sure about this, but probably will

(but on the other thought, when i am working OT and fast forward the speed by 160x, i do not like to be interrupted by those message box popping out and pausing the game)