That which changes with a few effort is a habit (except drug addiction) and that which does not change even after a lot of effort is nature.
Habit is located at the conscious/subconscious level of the brain, so it is easy to change. Whereas nature is located at the unconscious level of the brain, so it is very difficult to change. To change nature you have to reach the unconscious level of the brain. There are some spiritual meditation practices to reach the unconscious level.
That which changes with a few effort is a habit (except drug addiction) and that which does not change even after a lot of effort is nature.
Habit is located at the conscious/subconscious level of the brain, so it is easy to change. Whereas nature is located at the unconscious level of the brain, so it is very difficult to change. To change nature you have to reach the unconscious level of the brain. There are some spiritual meditation practices to reach the unconscious level.
Practical life is always different from ideology. Some ideological things sound good only in books. True love and true romance look good only in books and movies.
There are both happiness and sorrow in everyone's life, now it depends on you what you focus on. I've heard from people that you got what you deserved.
You can change habits, not nature.
I don't know about others,I can change any of my habits with a little effort.