Sorry you had a bad time, it's not nice when you just want to live in the baby bubble but your mind goes back there!
Make sure to remember that birth is not a competition, it doesn't matter who had it worse or who had it better, you're allowed to feel how you feel! You've got to give mind time to heal aswell as your body.
I had a similar birth a few years ago and felt traumatised by it too, I kept going over and over it, felt panicked anytime I had to go to the same hospital for anything.
It faded over time for me and was only really heightened when I decided to have a second, I was scared for birth all the way through in a way that I wasn't first time round.
My pre natal care was great and a doctor saw me early on, was aware of all the details of my first birth and talked me through how we could try and avoid the same happening again so I had a good plan in place for birth (they also mentioned a section of I wanted it but I declined). I was clear with the midwives when I went in to Labour that I wanted to go ahead with the plan and they were really good and made sure to read all the notes. It ended in an emergency c sect 🥴 but the trauma was no where near as bad as the first, I think it's a lot of shock factor with the first aswell.
In terms of high risk, you might find that it's not as much as you thought (depending on the reason for pph!) I had a follow up app with a doctor and she said the risk of it happening again is only a couple % more than it is for happening at all! Low rush pregnancy second time round too.
Please seek some help if you need it, don't suffer or let anyone tell you "you've got a healthy baby that's all that matters" because although yes that is the aim, so is having a happy mum to look after that baby ❤️