THRUSH: Will it work if i didn’t put the whole applicator in my vagina whilst inserting the pessary?

I have thrush and only inserted half of the applicator inside my vagina.

Will it still work? I’m scared i didn’t put it in high enough.. I’m stupid, i was scared to put it further as i’ve never had a tampon or such up there.

Also do i have to use the cream if i don’t have external symptoms? I get an itch once in a while but i don’t itch it as i don’t want it to get worse. This happens occasionally. My main symptom was excess watery discharge that has no particular scent when on my hands but yeasty on my underwear.

I don’t feel like i need to use the cream but if it’s obligatory i will.