There are 2 types of income:

Active Income: You are trading time for money. In order to make money you must perform something. Every day you start from zero.

Passive Income: You do not have to be present to generate income. Things like real estate...

Kiyosaki introduces the concept of assets and liabilities, emphasizing the significance of building assets (such as real estate, stocks, and businesses) that generate income, rather than accumulating liabilities (such as consumer debt and luxury items).

It is too risky to rely on one source of income. Try to generate income without trading your time for money.
Ways to generate extra income:

1. Start a web-shop - Sell something you use yourself.
2. Write and publish a "how-to" book