Anxiety vs false confidence

Some days I feel like I have the best confidence telling myself I can do this, I know my body, my body can handle this birth. Other days I see myself thinking about this and scaring or psyching myself out like how tf am I going to push this baby out....what if I need an emergency c section, etc. I'd like to think I'm pretty confident but some days and as it gets closer. Ahhhhh! Anyone else?