Your earlier price limit to buy STEEM was just way to low, and now you got immediately rewarded because of a great read on the market. You are a good example to be followed of a good emotional control.... made profits, take out some and keep grinding.
If you have a brilliant idea in the "real world", you might succeed, in crypto you are almost guaranteed to have success and great profits, because there isn't much here yet, and proof of brain is much more appreciated.