I spent a decade of my life in the valley and I do believe it's relevant to remember that what used to be a homebrew mixing of nerds, hippies, academics, researchers, teachers, makers, marketers, tinkerers and capitalists is now in large part skewed to marketers and capitalists. This is not necessarily good, bad, or romanticized it just is. So here are some tips:

Don't hustle.

Don't crush anything.

Try not to have to give a stage presentation with a mic at the corner of your mouth.

Your creation is not completely superlative or world changing yet, speak of it realistically.

The internet is not a substitute or replacement for you having to deal with humanity.

Be nice.

Follow your curiosities and interests. Have curiosities and interests.

Don't claim false passions. You're not passionate about "revolutionizing HR" or "remaking the way people buy nail polish".

Learn how tech relates to the world and how you relate to it, don't make tech its own world.

Maybe get a hobby.

Be kind.