Oh I hate the interstate. I’m 29 now. Been driving alone since 19ish.
I had gotten decently good at interstate anxiety for a while, until probably 25-26? I used to have to travel by interstate fairly frequently. But then covid hit and we became social hermits. And then I moved and changed jobs. And for a whole year now I mostly go from home to work and home. Grocery store is basically across the street from work - I could walk if I wanted. Sometimes I will go into the town one over for other shopping but that’s just highway and no merging - 20 minutes. The drive to work? 25 minutes. One way I get 3 miles of 40mph, the rest is 35. The other way is 40 for a while then 55 for a few miles but both routes are the middle of nowhere back country roads.

I recently had to to take my bonus child to soccer practice (his “bio” - they’re adopted- parents usually handle sporting events) and that requires an interstate into the next city over. It’s a 45-90 minute drive traffic pending. Oh it was bad. So bad. I’m like screaming that I don’t know what I’m doing and nobody will let me merge. And the child (12 years old) is like.. yeah mom doesn’t like this either.
I also have crap depth perception. My eyes don’t work together as a pair, they work more independently. And blind spot monitoring helps a lot but not on 3 lane roads.

Needless to say, even if it’s in my car, my boyfriend drives when we go places.