I know it's disappointing to see in the short-term, but don't let it get to you.
Trading history repeats itself in EXACTLY the same manner and it goes like this:
a) traders sell when price approaches previous high, and record their profit.
b) price goes down and traders buy in again... feeling very smart and happy.
c) price goes up again and traders again sell waiting for the fall.
d) price breaks historical high and continues higher as there are no sellers
e) sellers rush to buy back in at any price, and thus reinforcing an even sharper rise in price.
f) investors [in contrast to traders] sell a load, the coin falls back and traders lick their wounds.
At the end of the day, short-term traders loose.
The saying goes - traders collect profits their in spoons, and losses in buckets.
So sit back and smile.