Happiness isn't what you love doing

To do what you love adds pressure because you first have to find what you like, know what you are good at and realise your strengths. Then you have to work hard at it, continually living with the self-doubt of 'am I good enough?'. 

Although it can be fun, doing what you love does not necessarily make you happy.

The initial stage of 'loving it' may be attractive, but it requires dedication and determination and many hours of work. Some parts of the work may even be hated.

It is the same for any job. It is only exciting in the beginning; the rest is just hard work.

The reason nobody says it's hard work is that no-one wants to work hard. Hard work doesn't sell. What people sell is to know the 'why'. It sells quickly while promising fast results with little work. But it isn't realistic. In the end, everything good takes time, hard work, discipline and dedication.