Cervix check

So I’m tying to work out how to check my cervix, I feel like at the moment when I find the (ball at the end) it’s hard when I push on it like the end of my nose (which is not fertile) but high? I’ve literally gotta stick my middle finger fully up there to find it ? Just a little unsure if I’m doing it right or not any insight would be lovely ☺️☺️