I invested about $3500 in bitcoin on 19th December, 2017. After that Bitcoin price has been decreasing and this decreasing is ruing non stop. Now I am in loss amount of $700. I am so much frustration with my investment

. I am waiting for better time. If you have any idea please share in this thread.

Sad to see that situation again, but don't lose the spirit. Bitcoin price will go up again. I think it looks like a market gambling and the share has been handed over to the Bitcoin holders. I believe that all cryptocurrencies market situation will come down and the price will get back within a week.
Once you invest in this market so that you have to keep it up and observe that situation. take your time, profit will come to you for sure within a couple of days. Keep patience and be strong...