Trading isn't a lifetime job to some people but there are people that have made it a permanent job. On point number 2, trading doesn't have to be enjoyable, you know the reason why you are trading you are not after what is enjoyable to you. Making Money is hard and a lot of times we might have to do things that are not enjoyable to become financially stable. Good things takes time to happen so don't expect the journey of trading to be easy. If it gets too stressful you can take a break
When someone can make trading their lifelong job, of course they have other sources of income that can meet their needs because it would be very risky if someone only relies on their source of income from trading and they could experience some failures in trading and they have to find other sources of funds to continue trading.
In achieving financial stability, of course, it requires a process that is not easy, of course there will be a process that they must go through in order to achieve financial freedom and if they choose to trade towards financial stability, of course they must be patient with each learning process and also have to practice often in order to be able to trade by making a profit from it.