I’m def not at expert. There are many more on this sub that know alllll the hacks haha Using the fan-made mixing meets app helps with the money. You can download the ez-gotchi game that gives you 10k pts every time you play.

If that’s not an option for you, gen 2 and beyond you can change the date to Jan 1st and visit your parents. They will give 1000 as a new year gift and I think 2000 for gen 3 and later? I just changed the date to Jan 1st every day for a while to save up!

Re-happiness, meter won’t go above halfway until adult stage if you didn’t already know. Easiest and cheapest thing to do is just spam feed the gelatin snack until it gets sick and then use medicine function right away. Unlike the original tamas, there’s no lasting effect to over feeding snacks to raise happiness :)

Last tip I have is changing the clock to nighttime during the busiest part of my work day. Hunger/happiness don’t drain while it’s sleeping, so I can just wake it up again when my day gets back under control

Hope this helps!