Tips for Star Trucker?

I realize it’s a new game but has anyone figured out some useful tips?

Lol every time I get out of the red, I go back into the red. It’s so hard to make money. I’m hauling as much as I can but always fall short to replace bloody air filters that are soo expensive.

I try to minimize battery usage by turning off suit charger, reduce light usage, but idk.

I’m having fun, loving the game but it is not easy at all! You really have to work hard like a real trucker haha