This may be possible, because if someone invests $200, there may be a profit of $4-5 in a short period of time. Now if you expect to make such a quick profit you will not be a successful investor. If you expect profit soon after investing then it is not wrong to call you a trader, to be an investor you have to buy bitcoins and hold on for long term. Now it is normal for the market to fall, so don't despair here. If one is disappointed to see the market down, he will not be able to hold for a long time, and if he cannot hold for a long time, he will not be a successful investor.
If your capital is only $200 and you think that you have no other capital than this $200 that you will invest in Bitcoin, then you do not need to invest in Bitcoin.
Rather, you can buy Bitcoin with your ability every week or month. By doing this, you will see that your Bitcoin portfolio has become very long, which will provide you with financial security later.
Now, in order to achieve the desired profit from Bitcoin, you will have to invest on a weekly/monthly/annual basis.
Not all people have so much money that they can buy many Bitcoins at once and hold them for a long time, but if people buy Bitcoin from the income they earn every day, even if it is a small amount, then in time they will see that they have a good amount of sales.
Therefore, you should invest in the DCA method.