Scared to dilver

I am a 23 year old FTM, who is 37+1 pregnant, due September 9 and I am terrified of giving birth.

Haven't had sex in the longest while (March), because it's painful. Haven't been exercising because I don't have the energy to do it. I would just like walk for 5 minutes and then I would be tired.

Scared that when it's time, it's going to be extremely difficult to deliver my son. Aunts told me to start drinking thyme tea because it makes giving birth easier.

Any advice? Did anyone of you ladies had a smooth or some what smooth delivery even though you didn't have sex and you weren't exercising?