Partially true. Life is more nuanced.

Low self esteem can manifest in different ways, and talking is essential in the thinking process. Why do you think we value free speech so much?

So many times we hide low self esteem by "doing" things as a way of escaping instead of facing the fears right on. For that you need to understand patterns of the mind, your self and your shadow.

So the actual good advice is: yes, totally go do things in the physical  world *and* consider talking to a good therapist.

nostr:note1g8qcyz7s7765n0cxr6kt4cucmul2de7zmc55mc8r7g7wvtdk28esr0mtme  

 or escapees 

 Nailed it.