I just finished a conversation with a successfully retired executive. He told me the secret to retirement is to keep your life uncomplicated. These two are related.
If you do something really well are paid for it, you hit the lottery. If it is one of your 1000 things, you still are ok. If you are hating your job and don’t something you do well you might be a dumbass.
Life is too short to not enjoy what you are doing. Sure, we have to do things we don’t want to, but not all the time.
If you do this, your life will be a lot easier than swimming upstream doing something you don’t like and aren’t good at. There is nothing wrong with tenacity, as long as it is combined with intelligence.
The moral of the story is don’t be a dumbass.
Delusions of Adequacy 