First of all .... If you are just joining Steemit.com from the TRON Network you should definitely create your first #Introduceyourself Post.
Steem Whales are very good about rewarding new members with Steem and usually upvote Introduction Posts with enough Steem to get new people going on their way to earning their own Steem.
There are 2 ways to earn Steem on Steemit.com.
Author Rewards and Curation Rewards.
In order to earn Author rewards (Steem) you need to post good quality "ORIGINAL" Content here on Steemit. Never ever copy and paste or plagiarize. You will be downvoted and it will be very difficult to ever earn Steem.
The only way you can earn Curation Rewards is by having some Steem Power. You get Steem Power by "Powering up" your Steem to Steem Power using your Steemit Wallet.
You earn Curation Rewards (Steem) by upvoting other peoples great content. Use your upvotes sparingly since it reduces your Steem Power % that needs to recharge each day. It is best to only upvote 10 posts per day (Maximum)
If you upvote a new post at the 5 minute Mark you will earn some good Curation Rewards. You share 50/50 with the Author and the others that Voted on the Post. So if a post earns $10 in 7 days you would earn 50 % of that shared with the others that upvoted that post. This Steem is deposited to your Wallet as Steem Power in 7 days.
To earn the Maximum amount from Curation rewards it is best to convert all your Steem to Steem Power and only upvote 10 posts per day at the 5 minute mark. You do this by following the "New Posts" and ONLY upvoting the best Original Content.
You will notice that your Steem power drops by 2 % with every upvote .... So 10 upvotes per day will drop you from 100 % down to 90 % .... This will rechgarge (automatically) every 24 hours.
It is a little complicated but you will understand it as time goes on ....