This is NOT going to cover all the ins and outs but will start you on the path.
#1 DON'T PANIC:
Day 1 is like being dropped into a foreign country and not knowing the language or how to even get help and with all the buttons and passwords you wonder if you are going to post or push the wrong button (yes it happens). And lord help ya if ya lost "THE PASSWORD" you were told not to lose!
#2 YOU LEARNED TO TIE YOUR SHOES: (this is the velcro version)
Yes it can be a challenge but you learned and you will learn here as well (velcro is saving the threads/bookmark to be able to go back and re read till ya got it all figured out (remember this is a foreign country analogy).
#4 SAFETY FIRST:
In spite of all the things you need to learn, safety of your password and keys are important (without them you don't exist) so this first link I am placing here is how to use it and I hope you remember to velcro/bookmark it and to find a new blog by the blog owner and upvote them, they deserve it!
More links to other items will follow and be numbered in what I see as importance.
#5 BEING A VIABLE PRODUCTIVE STEEMIAN:
You are a very small minnow here and not a YT rock star and trolls die here (don't be a troll).
Everything you write and post or edit or delete, there will always be a copy of it on blockchain (yes this is a great thing).
Your actions and attitude will make you or break you (pull up the undies you are now in big people land).
Link #1
https://steemit.com/security/@noisy/what-is-the-difference-between-a-password-and-a-private-key-s-on-steemit-how-to-make-your-account-more-secure-by-using-them
Link #2
https://steemit.com/security/@noisy/public-and-private-keys-how-they-are-used-by-steem-making-all-of-these-possible-you-can-find-answer-here
Link #3
https://steemit.com/steemit/@ilyastarar/the-all-in-one-steemit-guide-for-newbies-and-minnows-tutorials-guides-advice
I could say in order to grow here it depends on who you know but it is really less about that and more about being social and chatting with folks (look under all the tags and find folks you like) and interacting with them, this comment: NICE POST can get you flagged by several because it is spam.
There are some awesome folks here at steemit and the community of sharing blows me away.
So welcome to steemit, read, respond and be real.