i want to keep buying infra but the more i buy the less money i make how do i stop this and how does the huge nations make any money with so much infra

Infra usually means more money for most people. Make sure to buy improvements when you can in the right order, get good trades, and address any messages in red that may appear on your nation screen.

You will have less money because you buy stuff.

Expect for be playing for a year or two before you hit about 8k infra.

improvements and resources have a huge impact, and the "my government position" has some stuff in it too.

Modedit: no thirdparty software

I believe labor camps help too.

But you shouldn't start doing a labor camp swap until you are 3999.99 INFRA

I believe in 19 days sleds its already worth at like 1999 infra