Let me share something with you. $200 investment... hmmm.. within 30 days you can make probably anywhere from $300-600 social engineering Amazon. (aka scam) After converting to BTC and sending it to a darknet market account with laundering.. probably you'll have $185 in your account. You could buy enough blow to sell for $200 profit if you know the right people. In a month... hmm, you could do this with shipping times (same thing that limits amazon) probably 2 times or 3 max. So maybeeeee $700 MAX profit if you do it 3 times and you sell for really high prices and rip people.
Those 2 methods I just listed are almost 100% guaranteed to make you money, but 100% illegal.

Oh, and did you notice how you basically double or triple your money.. but STILL haven't made over $1k in profit? If you started with more money, you would've made a lot more money.
*Now let me put in a disclaimer btw. With some of what is said in this post, with $200 you can find yourself a good VIP ticket to your local state pen!* (Double the fun)
Now.. onto gray zone activities! Which is more BHW related. Stealing other people's copyrighted material, messing with bitcoins, social media stuff, nsfw sites, etc.
With this, you aren't guaranteed any money. Heck, you could lose your $200 and go even into debt! Yay! Sure there's miraculous stories of people making a crud ton of money pouncing on something that went viral right after they got it... but your chances of very, very, VERY slim. These chances are for everyone. Not just you. It's not so easy to get lucky. Something that's less rare is making the same cash as listed above with the errr, prohibited activities. But like I said, this isn't guaranteed. And even if you have success one month, you may not find it again the next month. So with gray-zone activities... ehhh, max probably $500 profit if you find something you're really good at and get lucky and hit it at the right time. Maybe $1K if you find incredible luck...
The only other thing I can think of is either offline stuff.. but with $200 max probably another couple hundred profit. More like.. $50 profit, but y'know.. high hopes and all that, right?
Or high-risk day trading... WHICH... can get you to $50 profit daily.. if you're incredibly lucky. And $50 daily x30 is... drum roll please! $1,500. But, the odds are against you and you'll probably end up negative $20 at the end of the day.
So.. there you have it. My last secret is hmm, with $200 you can buy a lot of DMT or 'Cid and hallucinate that you're making $10K monthly. That should do it!
But no, SERIOUSLY. In order to make $10K monthly.. WITH only $200.. think long term. Within a year, sure it's possible with almost any IM strategy. Chances are slim, but WITHIN 12 months it is possible to reach that point. Any less than that, eh, lower your expectations.