How to get rid of ur feelings?

I had feelings for my friend for almost 9years , and im really tired of it .
Dont say date other people that doesn't work
i dated or tried to date but it didn't work , and im honestly not interested in other people at all .
Im starting to lose my mind , i have been dreaming of her for over a year now.
Im done.
And me myself i don't believe that i want to get rid of them , but like 9 years is way too long
(Me actually writing this because i couldn't text her)
But seriously how to get rid of them