hey patrick , investing is a big risk , most of the invest offers mostly end up scamming you.
I suggest you to hold your bitcoins , the price seems to go up and higher everyday , before 1 month price was 445$ , now price on 600-700$ .
if you have a good head start learning trade and trade with that 0.25BTC , thats like 150$ this days which is alot of trading . be smart you will make money.
about where to store , i advice you to store your bitcoins on electrum , dont use a online like blockchain (online wallet) , store it on electrum ( offline wallet) , read more about electrum before you use it.