You have to invest what you can afford to loose. Start 100 dollars. Go to coinbase and get registered there. Start small.
I think opportunity and challenge has a important rule for investing in bitcoin. Opportunity to us to owned a big profits someday. Challenge to invest without hesitating to put money, someday doble or triple your money. But borrowing money with parents is not good idea, just invest what you afford to lost.
when we borrow money from anyone else, we need to think about how we can give the money back to that person and we don't have any money. we need to know this so we can solve the problem and it is better to use our own money because we know how to manage the risk and we know how to prevent from getting lost. bitcoin give the opportunity and challenge at the same time and it depends on that person how he can manage this so he can make a profit from bitcoin.