Be open, share imperfect and unfinished work that you want feedback on, but don't share absolutely… — Austin Kleon
Be open, share imperfect and unfinished work that you want feedback on, but don't share absolutely everything. [...] The act of sharing is one of generosity— you're putting something out there because you think it might be helpful or entertaining to someone on the other side of the screen.
Source: Wikiquote · CC BY-SA 4.0
More from this book
If you're only pointing to your own stuff online, you're doing it wrong. [...] If you want to get, you have to give. If you want to be noticed, you have to notice. Shut up and listen once in a while.
When you feel like you've learned whatever there is to learn from what you're doing, it's time to change course and find something new to learn so that you can move forward. You can't be content with mastery; you have to push yourself to become a student again.
It is actually true that life is all about "who you know". But who you know is largely dependent on who you are and what you do, and the people you know can't do anything for you if you're not doing good work.

