Why do you believe in an unknown person who offers a weird promise like this? It is clearly scam, it is impossible that someone gives you free money $200 only in 3 days. You should think realistically, it is a too easy way to earn money. And you must suspect him because you even don't know him at all. Why did he directly send you a message? 
Next time, never believe an unknown person. Even if you know him, you don't give any of your coins if he doesn't guarantee anything. You are better to learn trading yourself and earn money in your own way.
Anyway, how many Bitcoin you lost at that moment?
You didn't explain it above.
happened, there's nothing to worry about. After all, the OP has regretted what he did because he was easily fooled by the lure of bigger profits. Here are not a few stories that are almost the same fraud comes to those who just want to know but the concept of investor who wants to get rich quickly. Regardless of the story, I feel the OP will learn a lot that there is no one we can really trust in holding Bitcoin other than ourselves. That's why Bitcoin was created, one of which aims to make us control what we have. Not to give control to a second party. Next time, never believe an unknown person. Even if you know him, you don't give any of your coins if he doesn't guarantee anything. You are better to learn trading yourself and earn money in your own way.Anyway, how many Bitcoin you lost at that moment?
You didn't explain it above.