Don't take advice from anyone on a forum, people here are mostly bull on bitcoin all the time regardless of whether its warranted or not. There are sound reasons both to expect the price to go up as well as for it to go down.
What it comes down to is do you think its heading up? Or more importantly do you think its going up in the long term?
If the answer to either is yes then you should buy now, trying to trade to buy back is just going to end in tears most people end up buying at the top and selling at the bottom.
+1
If you think in long term BTC is going to appreciate, then any speculation to bet on future correction/sudden price drop are very dangerous. As you see, you need to buy back anyway one day, and it can be very painful.
Like an old fox, you need a very strong belief and patience, and prepare the cash and buy in when everyone is really panicking.