Paranoia and anxiety about worms

Hi everyone, I am writing to this community because i got a little puppy not so long ago. I honestly adore her, but the one thing which is ruining the experience of the dog owning for me is that I am terrified of getting worms from her. We are on a monthly preventative treatment and i have never encountered anything in her poop, but she does not go outside yet and when she does I am just so scared she might catch worms from eating everything on the floor including other dogs poop. I know you actually need to eat their feces to get the worms but what for example if she cleans her bum after pooping and then proceeds to lick her coat so it will be all over it and then when i touch her it sticks on my hands. That seems like a very likely scenario that i might forget and eat smth and it would transmit to me. I calm myself down thinking that if it was common to get worms from dogs there wouldn't be so many people owning and happily living with the dogs, but who knows if the owners have it or not, they can be pretty difficult to detect. So instead of enjoying the puppyhood and her being so sweet I am paranoid and scared to end up with worms in my heart, stomach and eyes omg. I hope i do not offend anyone i am just genuinely scared and heartbroken by this issue which i research anytime l am free so I think it is developing into OCD. I also have contact dermatitis because of how much i was my hands during the day and I believe it is not that normal.

My paranoia is not letting me enjoy live and I am so tired of it.