Hello @jona001 :) Welcome to steemit community.. I'm glad you found your way here.. To start your journey, you can make an introduction post all about yourself.. Feel free to express yourself, just the way you are, share what's your perspective in joining this platform.. etc..
You can see my introductory post as an example:
https://steemit.com/introduceyourself/@geeyang15/introducing-me

Or you can also read many introductory posts in the #introducemyself trending tags.

just be sure to use #introducemyself or #introduceyourself as your first tag so that it will be noticed by other steemians.. :)

Explore and digest everything you can learn in this platform.. This is the best place for you.. :) God bless and more power..