I think this is not good idea to buying Bitcoin for taking a loan because someone give you a loan for a few months and if you want good profit from investment then you hold Bitcoin for a few years atleast 2 or 3 years then you will get huge profit.
Even after that 2-3 years, profit is not guaranteed. So I don't see any rational behind taking loans to buy Bitcoin as OP did. I will never do that while in my right senses. It is understandable the OP just want to fulfill his dream of owning a btc and he did though with much risk associated. I hope he'll not regret later.