The analysis provided by me is just an analysis. And if these levels happen, then you can buy as well as sell according to the given levels and your condition. But remember for long term investment this is the best oppurtunity where you can wait and watch any invest your money in the dip.
If ethereum enters the range that i mentioned and if it moved below the line that due to formation of Head & Shoulder pattern it will give you an approximate dip of around 200 dollars. And you can either short sell or you can either buy at the dip.