ZN Tnote-10Y american tresury still going up

No place for selling the ZN, from 2001 it is following an ascending trend as shown in the figure. The patterns (double top & head and shoulders) I drew show that every time the market exit the canal, it goes back right after.
As the ZN is slow, I believe that after a long time, prices will reach the middle dotted line, and if the volumes help, I expect the market to reach the upper line of the canal. Otherwise, It would bump into the middle dotted line.
But in all cases, I recommend to BUY the ZN