As an investor you need to be always positive otherwise you will fall sick when price goes down. i think Bitcoin will exceed it's last highest price very soon. So be optimistic.
If you have read about bitcoin and that you know the nature of bitcoin and the way it works, then I dont really think so that there will be any other reason which can create any kind of negativity in your mind and thoughts. You need to stay positive as bitcoin will never disappoint all those who trust bitcoin and those who are still investing their money into it and are holding their coins.