There was no accountant in the company, and now I take over the accounting problems of the company. How can I get started better?

The boss of this company is tight-lipped about his money, so you should remember what you said clearly. When the boss asks you to explain clearly that the boss cares about how much money you have earned, you should also keep a clear record of every income, keep a clear record of every month's expenses and work out how much money you have earned at the end of each month. The boss needs to know these figures. It is best if the data can be reflected in the form of financial statements. If you can't make financial statements, you should also make a simple journal. As for the warehouse manager, he can't do that much by himself if he wants the boss to confess.