Hide your intentions not by closing up (with the risk of appearing secretive, and making people suspicious) but by talking endlessly about your desir… - Robert Greene

Oysters open completely when the moon is full; and when the crab sees one it throws a piece of stone or seaweed into it and the oyster cannot close again so that it serves the crab for meat. Such is the fate of him who opens his mouth too much and thereby puts himself at the mercy of the listener. Leonardo da Vinci, 1452-1519

You must avoid at all cost the idea that you can manage learning several skills at a time. You need to develop your powers of concentration, and understand that trying to multitask will be the death of the process.

The future belongs to those who learn more skills and combine them in creative ways.