Corruption is killing the country far more than Covid-19, its the main reason why one of the main focus China had when Xi Jing Ping came to power was curbing or at least significantly reducing bribery and corruption. The effects of it are now quite visible as everything works in China and most things work very well or excellently.

Tilapias at home, it is fairly easy to do in a 3x6 tank. I think you could buy them from most aquarium shops for under RM500 inclusive of the filter box. Add around RM2-300 more for the pumps and a good idea to add a battery backup pump. You can then connect the pumps to a hydroponic growing system, either a pre-made one or build them off your own 3" pipes and net cups. Can be done if you have an area that has at least 2 hours of sunlight each day else you need LED grow lamps. I know someone that does does in a yard of a condo, produces enough vegetables for his family of 5.

These type of ventures, it is best you leave it to an established consultant if you don't know what you are doing. There are people out there that you could engage to give you a turnkey project and it will work out cheaper and more profitable in the long run to pay a bit more upfront.

There are reasons why in Malaysia it isn't advisable to have all sorts of farm animals in one place. Chief among which are disease control.

The real prize these days for those "rich man hobby farms" are permaculture ones, there is a video series on YouTube called Back To Eden Gardening method, tried it before with some varying success rates but in the end decided these are hobbies to pursue after I have retired and have all the time in the world.
Shanghai.

Convert jadi plastic recycling factory

Bees are a good thing. Many people are farming bees as well especially stingless or kelutut bees......bloody expensive hobby it is.
This is definitely a venture that could cause you to "habis everything"

I should have added, when I ventured into it, the setup I bought was from an operation that "habis everything" and I found a piece of land I wanted to buy to squat on as I had info it was in the masterplan to have a highway running on it.
That isn't true, many restaurants are generally reluctant to buy from any new operators or from anyone they don't already know. Quality and consistency concerns mainly.
Not young enough

You got to venture and try for yourself sometimes.

To many, the agriculture operation is indeed just something to sit and squat on the land. Once converted or better yet acquired by government for infra projects, that's where you can make some real  money.