I haven't spoken to, met or heard of anyone who had the type of labour I had
My first labour was 54h. Sent home from hospital once and they wanted to send me home on second admission but they let me stay (birth was about 24h later). Ended with a non-working epidural, ventouse and episiotomy.
So fairly similar to yours.
DD is now 15 and I've gone on to have 3 other children. I'd rate this first birth as second easiest of my four labours.
At the time I felt the labour/delivery was hideous. Hindsight allows me to understand that having nothing to compare it to impacts my perception, it actually wasn't that bad.
I'm not sure that will help you. I replied just because my first birth was very similar to yours and you said you'd not come across similar. In comparison:
DC2 was long (26h) but with working epidural was a wonderful experience
DC3 wss also a long lobour (23h) but without an epidural. Mistake because the lack of pain relief made me panic. I consider this a worse birth than DC1
DC4 was by far the most traumatic (for me and DH). After 8h labour, dropping heart rates, panic, a crash emergency c-section under full general anaesthetic. My husband was treated for post traumatic stress in the months following - he thought we were both going to die and he'd be left as a single dad to our other 3.
This was my worst birth experience. In comparison, i came to realise DC1 was a long, but not too bad birth.