OP, get all the support you can, for as long as you need it.
I can assure you that your H does NOT consider you a burden, that's the sleep deprivation and hormone fluctuations (and possible PND) that makes you think like that.
The early months are hard, and SM 'expectations' are totally unrealistic (and completely untrue ! No new Mum looks or feels like that, I promiseyou !)
The best way to help yourself is to keep talking. Keep telling the truth about how you're feeling. Forget the crap everyone is fed about breastfeeding/bottle feeding/sleep etc, and do what's right/works for YOU and your DC
The first year is when all the big changes happen. You 'becoming' a Mother and your H 'becoming' a Father (and no, it doesn't just 'happen' at the birth, it's something you grow into as you and your DH's life have totally changed, and it takes time to adjust to that).
Your whole world, everything you thought you knew about yourself and your H, has been turned upside down. It takes time to settle into a new 'normal'.
Your body has undergone a metamorphosis. You have created a new human being on the planet. Little old you, has created life. You should be proud of your amazing accomplishment ! Think how David Attenborough would describe it ! [wow]
It's great that you have seen the nurse, and you are open to trying things to help you. It'll take time to find what will work for you.
Meantime, the best 'help' you can get is to speak to other Mums (in RL and online), because it's by speaking to others in the same position that you can see that everyone finds it bloody hard !
You are NOT alone, in fact, you have joined the biggest CLUB on planet earth!