In this case, you are actually doubling the risk of losing your money. First, you haven't understand what and how bitcoin works, so you'll probably get surprised when price jumps a couple of grand in just a few hours and most probably panic sell when bitcoin will experience a sharp dip or a prolonged bear season. Secondly, your friend my get tempted discreetly stealing some fractions of your bitcoin transferred to his own wallet.

You actually just found this community created by Satoshi, so I guess you're good in doing your own research. I suggest you should do the same research on how to buy and sell bitcoin on your own. It's not as complex as understanding the blockchain technology.
Should you invest in bitcoin? Well, most of us will say Yes because this is a community where majority is a bitcoin enthusiast, but just like what I've said, you should do the digging first so you will come up with your own answer on whether or not investing in bitcoin is for you.