It is a great compliment to be told, "You know what you are doing".
This simple statement is a real confidence booster. It's also a pleasure to say about someone else too.
"You know what you are doing" can be praise for a single piece of good work. It can also be said about an individual's attitude & professional skill as a whole. High praise indeed when that is the case!
["Of course there is enough light for me to photograph this lunar eclipse, I know what I am doing"]
To know what we are doing also has an interesting meaning if we apply it to our careers. Not everyone can think about their career and say in all truth, "I know what I am doing".
In fact, it is probably a minority who really know what they are doing with their career.
[Don't agree? Try these simple questions as a test: Where do you see yourself in 5 years time?, What do you see as your strengths & would others agree with you?, What would you like to do more of in the future?, Who are the people with a long-term interest in your career?, How do you define success in your career? & What beliefs define your relationship with work?]
If you know what you are doing, the above questions should be familiar. That doesn't mean you'll have all the answers but the more time you spend on them, the more you will learn about what you are doing.
One day you may even be the talk of your friends and co-workers, "There she goes. She knows what she is doing" (N.B. Feel free to replace 'She' with 'He' if you are that way inclined).
Have a great weekend!