Nothing
Depending on how much you have, what was your buy price and how much of your total investment is in bitcoin you can make a few choices but i will assume you are holding more than one bitcoins as your question suggests and i will also assume you are not depending on them for your everyday needs.
Bitcoin has a good chance to multiply your investment in next 2-3 years. you can try and invest them into alt coins and try to speed up the process if you have some trading skills but this would require you to transfer your tokens to an exchange which posses risks as exchanges can get hacked. so the safer route is to have your bitcoins in hardware wallet and forget them for the time being.
if you really have an urge to do something then use one bitcoin for trading and keep the rest safe. if you can make one bitcoin into 2 bitcoins by the end of the year then you can continue.
keep watching the price and if the price declines alot then consider buying more to improve your average.
