Welcome to steemit, Momoh!
I'm not the indicated one to tell you how to succeed here, cause I'm not even close to being successful after almost two months... But I know something, you can be more successful than me in less time, for sure ;)
Post things you consider interesting. Many people here will consider those posts interesting and will support you.
You can also make some friends to support mutually by following each other (upvote x upvote). I may be one of them, you can see I'm a follower already :)

By the way, I wish you the best in your career. Excellent choice, boy!
Greetings!