When You’re New
Y## Nobody expects you to know anything
Nobody expects you to know anything when you’re new, typically entry-level in a career or a new joiner to a community or company. Sure, you needed to know enough to fool someone into hiring you, but as long as you never lied or lied-by-omission, nobody is going to turn around and fire you for having holes in your knowledge.
Of course, there are cases where this doesn’t apply. Junior talent is the most expendable, and some companies don’t have a healthy attitude to mentorship and hiring. However, in general, I find the tech industry a lot better for mentoring than, say, finance. Tech companies generally place explicit responsibility on seniors/team leads to mentor juniors, especially as part of their career progression goals.