Thoughts from shaytaan

Asalamualaikum
Respected mufti saab

Sometimes i think shaytaan puts these thoughts in my mind. I get these silly thoughts in my mind eg. like ;Ya Allah do not make me pass my test when of course I desire and I really hope to pass my test. Then i think to myself that i made a dua in my heart not to pass my test.
I would like to know:
1) Is that thought that crosses my mind considered to be a dua of the heart or considered as a dua at all since i dont desire that to happen?
2) What can i do to dispel these thoughts?

Jazakallah