How to earn money farming simulator 2017 on normal mode without cheating?

If we are owning 4 fields and some tractors, or maybe some sheep and we have problem with money.

What should we do?

The answer is easy but need patience.

First of all, start mission and complete them.

Second when you have your own crop do not go instant sell it out.

Wait till crop price will be high enough to earn money, it will be green or even blue indicator and then sell all your stock instant in one time.

That will earn you more money than you think, and you will be playing farming simulator 2017 fair without cheating.