I know how it feels Op and because of your greediness and lack of knowledge that's the reason why you've forced to sell your BTC in a short time $75 to $45,
It is not right to call OP greedy according to this topic. OP was not greedy a bit. He was fed with incomplete information or simply he was misinformed. He only acted according to the information available to him. He was told that if he invest in a bitcoin platform his money will multiply. He invested and checked back and noticed his money reduced instead, he should not be blamed for acting swifly to withdraw his remaining $45 so that it won't get to $0.
Again, OP only invested $75 which I believe is what he can afford to loose, assuming he was greedy, he would have borrowed money from relative to make it like $500.
Op's mistake is not a new one, it one among the hundreds we read everyday.
One funny thing is that Op entered the market in a bull market and that is the time that newbies flow in.