Do WHat you love OR Love what you do
Do what you love is one guidance that's often talked about as the path to success. It talks about pursuing your passion. Sometime life situations and lack self belief may prevent us from doing so. In many other situations, especially at the start of one's career, we don't even know our passion.
However, there is another option. Maybe even an equally attractive one, but certainly a more pragmatic one.
Love what(ever) you do. For if you do that you will do it to the best of your ability and see progress. Progress builds self confidence to continue moving forward or even take a divergent path as needed.
Often loving what you do, leads to doing what you love!!!