Life is very very simple

Eat well.

Get enough sleep.

Make your life nine parts work and one part leisure. Continue like that.

Do work that you like.

If you don't like your work, like it.

Doing work that you don't like makes a sour life.

Doing work that you like makes a sweet life. Please like your work.

People in your life may try to make your life harder, or miserable. They can do that if you are attached to them. They cannot do that if you are not attached.

Use the scanning breath to detach from these people.

The scanning breath is an art. It takes years of practice, but yields great rewards.