I think the right position to buy bitcoin is even more. You can open orders at the price of $ 6000 because I think it is very difficult now to be able to reduce prices to $ 5500 again.
It is coin business and in any business you will to take some risk. Dont be panic and go ahead to buy some bitcoin today, because if you do not take risks, then bitcoin investment is not for you. You should invest in some regular business. You need dare to bear the loss due to fall in the price and patience to bear this kind of situations of the market. Be cool and positive about the future of bitcoin.