Hello, @alonsomath, and Welcome to Steemit.

It's great that you take the effort to translate your intro into English. You will find that certain other Steemians (whose native language is not English) make each and every post BiLingual.

Most of them will put the full English portion first, and follow that directly below with a full version in Spanish or Chinese or another languages.
That can be an effective way to reach both audiences at one time. With your proficiency in 2 languages, I highly recommend you do the same ... if you can.

Below are a few basic points of advice re posting on Steemit.

1. Longer posts are more lucrative than short posts. If you make a post of 20–30 paragraphs, it's more likely to earn rewards.
2. Include some photos, images or graphs, to complement the text.
3. Make sure the text and photos are formatted properly, so that your post looks attractive and appealing.
4. Be yourself.
5. Be interesting and informative.
6. Create quality content. Steemit is intended to be a platform of quality content. (You will see many insignificant posts with meager content and no quality. Most of those of posts [called “shitposts” by Steemit whale Stellabelle] will earn few rewards and soon pass into oblivion.)
7. Get online and start curating. Read various posts, comment on those posts you find interesting, and upvote those posts. That’s the best way to attract followers.

Hope this helps for now. Good luck, and Full Steem Ahead!