Welcome to the new world. First of all you need to get points by replying to post, start new topics, but there is a formula in bitcointalk to get points.
You need to know answer of some questions:

What Ranks exists in Bitcointalk?

Brand New: 0 posts
Newbie: (none)
Jr. Member: activity: 30
Member: Activity: 60
Full Member: Activity: 120
Sr. Member: Activity: 240
Hero Member: Activity: 480


Activity? How can i get it?

The activity number is determined in this way:
time = number of two-week periods in which you've posted since your registration
activity = min(time * 14, posts).

Activity is updated every 60 minutes.

How much is the max activity can i get?

14 is the most activity points you can get for each 2 week period. (It depends on your joining date and time to bitcointalk.com)


After you get more points you will be level up and can wok on bounty programs, you can earn BTC and get paid for advertising and posting in this community.
I think you should research on some keywords:

- Altcoins
- Etherum Network
- ICOs
- Bounty Program

After this you can earn money be active in this world.

You can invest on ICOs as well, buy their tokens as much as you can because they have potentials to grow and be the next Altcoin!
For example take a look at Gilgamesh Platform Website and their bounty program to know more about the legit ICOs and what exactly the bounty program is.