I just wanted to offer some hugs.

I don't know the full story of your last birth/early days and even if I did I can only imagine how tough it was.

It sounds like you've got lots of good support lined up so try not to over think things and just take it one day at a time.

My breastfeeding journey has not been completely problem free but I found once feeding was working properly I could actually zone out for a lot of feeds. Browsing the Internet and belly belly on my phone while DD fed made it feel like 'me time' and I sometimes forgot she was even latched on. It's probably not so simple with a toddler to think about too but reframing the way you think about breastfeeding time might help if you choose to go down that path.