Of course, everyone has their own opinion, it's hard to make a wise decision on your advice. $ 200 a month is good for investment. A good sense to you to refer to the type of investment appropriate.
But right now, some altcoin have red spots right to invest, ripples and anchors are good choices. It has a way to grow in the future. The ico campaigns are also good and in line with your investment. Forms of loans are a good trend for you to trust. Please refer to my signature if you really care about it.
After a month of hard work I have to pay quite a lot of things. I just got one about 200$ to invest in bitcoin. Should or should not. Please help me !

$200 per month? 😐😕Uuhm
I dont think you should invest that amount of money into cryptocurrency, no profit would come from it, unless it was back then when Bitcoin was sold at the price rate of $200$250. But as of now, I will advise you to keep on investing in altcoins until you gain enough money to invest in Bitcoin. And when you do, be careful so you dont lose them.
200$ a month is actually enough for any kinds of investment including bitcoin. And how can you say that no profit would come to him? every people can always gain a profit as long as they invest onto something profitable such as bitcoin and probably op can also do it. Bitcoin is also fluctuating and there is always a chance to purchase it in a lower price and it is also possible for its price do go down up to 200 to 250$ or lower because as i said earlier bitcoin is too volatile. There is no need for him to invest in altcoins rather he can always jump in bitcoin directly.