Hello and welcome Mahtab. I hope you will enjoy in steemit as much as I do. I wish you all the best and Im looking forward to read your posts :)))

Yes, you can earn money here with blogging. You need to write posts about something that interest you and people will start following you and they will upvote your posts if they will like it, so that is how you will earn money. So basically more people following and liking your posts= more money.

I advise you to join on steemfollower to get new followers and to get upvotes form a lot of people. It will help you to grow your account and more people will read your posts. You can join thorugh my referral link if you want so that both of us can profit from that. Here's the link: https://steemfollower.com/?r=3772

Enjoy your day :)