Generally, I invest for the long-term.
You are safe if you have invested Long Term.
If you accept my ideas (Which I use in My Trading Life)
I will suggest you to buy 200% amount of what you have already IE. If you have 10K QRK then buy 20K in this price so your recent price will go up and your 10K QRK seems cheap and hold untill QKR rise more higher then your first buying price, May be you noticed and Understand what am i saying. I used such almost all the time. I hace DEV in same situation but now I am in Profit from DEV I had 200K high Price (IE. .00004 LTC) when it fall down up to 0.00002 I bought 800K so my last 200K's price is now almost settled with recent 800K so i am now in profit in Recent price which is 0.000028 but i will wait price to rise more then 0.00004. I recomend you
Final decision remains on you.
Good Luck
Note: Be sure when you buy in Lower Price let price come all the way down dont panic buy, Let price come all the way down and when went back upwards of 4-5(Sometime in 1-2 Situation must be observed like how much buy orders are there) candle then you could surely buy, normally continewing 4-5 candle up ward is harder to fall back again to the lower point.