Is using dental floss every day really this difficult?

Even though I think I should take care of my teeth
Strangely, I always end up skipping the floss after using it for a few days.

I thought it would be fine as long as I brushed my teeth thoroughly, but
When I see food stuck between my teeth, I feel like I need to write it again.

It feels like the toothbrush doesn't reach the spaces between the molars very well, especially.
If I don't use dental floss, I also feel a lingering sense of incompleteness, as if I haven't brushed properly.

Those who have just started using dental floss properly
I'm curious how you developed the habit of writing every day.

Are there any people who stopped because their gums were bleeding and then started again?