It seems OP also made a good investment in the student, $200 to get $500 in six months, I don’t think you would made that ROI if you had that bitcoins in your wallet lol… Even though I can understand the financial struggles of a student in university, I must say the story sounds too good to be true. I find it hard to believe that a struggling person would be psychologically able to trade without losing money to greed.
It is good that another person here is able to recognise a fabricated story just from reading it. There are many details in this story that do not just add up, and even though the story was short and concise, I do not see any need why you give us a summary of a story when you had enough time to express yourself so that we can believe you better that this story is really true.
A struggling student has many expenses and financial challenges. It is not possible to say that you gave him $200 and he traded with the $200. He must have settled some challenges.
You also said in your story @OP
So I quickly as him if he have a little idea about bitcoin and he said yes but no money for him to continue trading,
With little idea about cryptocurrency trading, it is not possible to record a series of profits in trade that you become comfortable financially. To maintain profit in trading, a very good knowledge of trading is required.