Cakes :( I remember your thread from the other day.
Speak to the MW or HV when they next come to see you - they can point you in the right direction to speak to someone. Request a debrief, and your notes when you feel ready, so that you can piece together what happened and why. None of it is your fault though.
It's not a surprise that you feel this way, please be gentle on yourself my love.
Are you EBF now or are you still supplementing with formula? If you're supplementing it might help you to speak to a proper BF counsellor (the advice and help from MWs isn't always that great as they don't necessarily have the time or the right information) if you feel that EBF would be something you'd like to do.
You are grieving for the birth you hoped for - we all know that it's never guaranteed that we'll get the birth we would like and we can all do our best to mentally prepare for that, but it's still bloody hard to come to terms with the fact that sometimes we need more help than we'd bargained for. Things didn't go 'wrong' (channelling Mary Cronk here!), but your DS needed help, and to help him, you needed help. That's all. Help, not going wrong. If it was anything else you needed help with then it wouldn't be a problem, but because it's birth we see needing help as a bad thing - and for all my posts about intervention being a choice, choosing to have it is sometimes the absolute best thing we can do for ourselves and our babies.
And realise that even in the hospital, it was you who noticed that something wasn't quite OK with your lovely DS - it was you who noticed his temperature, for all of the lovely medical staff who were there. You're his mum and you know him better than anyone, and it is because of you spotting he was too hot that he was able to get the care he needed to keep him well.
Even though you've had a CS this time, that's not actually something that bars you from planning a homebirth in the future, HVBACs are possible - so please don't think you're going to have to have any future babies via a CS or even in hospital. That's not something to think about now though, that's for later.
You have done something amazing. You made, grew, and carried that little boy. He came from your body after you'd done everything you possibly could to do it all by yourself, and now your body is still helping to nourish him despite everything that it's been through. You're fabulous.