That's what OP should be doing with his $200 worth of bitcoin, he should maximize the use of it to earn more out of it. Most of the time the easiest is investing it in investment program, which is sometimes good, but most of the time turn wrong when the program starts to rob you. OP could try trading too, it's a little less risky compared to investing it, but, the earning there is a bit smaller since you can't predict the right timing all the time in when to buy and sell your stocks.
The more you risk with trading the more you can theoretically earn. The earning there is not smaller because you can't predict the right timing, it can only be smaller if you invest in it a small amount. Keep in mind of course that you are not guaranteed to profit from trading, you should know what you are doing.
Trading is taking risk on your own. Profit or loss, you'll be the responsible. Yes, it takes knowledge, ability to make right decision, dash of luck. Knowledge and ability to make decision comes with time and more n more practise ( in short, experience).
Investing is handing over someone else who would risk it for you. Here finding right investment-manager is task. Verifying claims from investment firm/manager are correct or not. Here again profit is a variable (like those cute notification put in small letter "all claims about profit depends on market and are not definitive").
If person has some orientation towards trading then over the period of time trading could earn descent returns.
On the other hand if there is no orientation towards the trading then either find right investment-firm/manager or simply hold bitcoin for long.
Find a manager who would manage money very difficult. And expensive. Better get your own personal experience and start trading. Through trade can succeed