I really liked your post. It is full of questions that we sometimes ask ourselves, but we find ourselves unable to answer. Nevertheless, it is worth reflecting on those issues because it can expand a little bit our vision about life and the world in which we live.

As you are a new user, I recommend that you visit the Newcomers' Community in which you can find something called "Achievements", these achievements are publications that you can do following the requirements and help material provided by that community. There are a total of 6 achievements, if you do it, you will not only be rewarded with votes, but at the same time you will learn a lot about how Steemit works. Here I leave you the publication of the Achievements

I suggest that you participate in the initiative called #thediarygame. It is about writing a diary in which you can publish the activities you do during the day until the time you go to sleep. We are in the third season since this great project began and it has been a success. This with the aim that new users develop more quickly by placing the journals with the option of 100% power up, I recommend that you do not use power down, because the amount of rewards you can get is directly proportional to the voting power, ie the Steem Power. The curators are very attentive to the journals, so the votes are guaranteed as long as you follow the rules. Here's the link to the rules.

Health and much success @isabella01, if you have any questions don't hesitate to consult other users. Keep writing that with effort and dedication you will get very far. Starting at Steemit can be difficult, but with time you will see that it works. Vote and comment, you will surely make many friends.

I apologize if there is any mistake. I speak Spanish, this was translated with deepl.com