Welcome to Steem. Pretty good post but I needed to downvote you for 2 reasons.

I think you went a bit heavy on the vote buying for your first post. You could be as high as third on both the 'introduceyourself' and 'ethereum' tags with a payout as low as 10 STU (the dollar value you see on your post). You could also use the 'steemleo' tag for your content to appear on this tribe. If you pay for promotion on steemleo, you can get on the top of the trending page for less than a dollar. I think 30 Leo will get you at the top or near the top of trending for most of the life of the post. It is very easy to do. There is a 'promote' button at the bottom of SteemLeo post. The amount you pay is burned and is therefore good for the community. if you want top learn more about tribes, I would recommend going to Steempeak.

The second reason I downvoted is because you downvoted other users who are trying to offer you good advice. I do not like this attitude. There is a lot to learn on Steem. I have been here over 2 years and I am still learning. I wish you all the best.