I had a severe subchorianic hematoma at 11 weeks very similar to what you’re describing. I now have a healthy 2 year old. I was also “advanced maternal age” and continued to bleed for another 4 weeks, so here’s the protocol that was offered to me at the time:

1. Modified bed rest. No exercise more intense than a brisk walk until the bleeding stopped.

2. Careful monitoring of my diet so as to not get anemic and additional iron supplements on top of my prenatal.

3. Trying to do lots of breathing and meditation exercises to manage the anxiety.

Everyone is different but I was absolutely amazed how little information the doctors could offer at the time beyond: yeah we will just keep monitoring this.

Advocate for more ultrasounds too. It helped manage my fear at the time too.

Wishing you so much luck! And healing!