Not so hard to love it some, or even most of the time but they do call it work and by it's nature it is not always lovable. Usually it is not the work that gets you, it is the difficult people that you must deal with from above and below.

My Father was a professional photographer. He loved it so much that it was also his hobby but he still had occasional difficulties with supervisors and subordinates in the times he was not self employed.

Your tips are excellent but follow them to the tee and they don't protect from those people that can make you miserable for short or long periods in the corporate world.

A very skilled tradesman or successful artist probably has the best of situations. The skilled tradesman can change jobs at will and the artist is often pampered and allowed to work more or less unsupervised.

Tenured professors also have a nice gig.