dont take anyones advice about what will happen with the currency, do your homework, learn about bitcoin and come to a conclusion. personally i believe we are just starting, but thats my own opinion and you shouldnt consider that as investment advice as well.
a few pointers for buying and holding bitcoins:
never invest more than you are willing/able to lose bitcoin is a very risky investment and you should keep in that in mind at all times.
After buying Bitcoins make sure to move them into your own personal wallet and never leave them at the exchange. my personal recommendation is to use a hardware wallet to store your bitcoins. If you cant afford a hardware wallet, try a paper wallet.
make sure to buy bitcoins only from exchanges that have proven their reputation.(or trusted users in bitcointalk forum)
buy bitcoins through dollar cost averaging this means that you dont buy all of your bitcoins in one trade but instead buy a fixed amount every month, week or even day throughout the year. this way you average the price over the course of a whole year