I had a friend who was exactly the same, they didn't know what to do with their baby or how to be alone with her. They left the house everyday for baby groups or pushing around shops/ walks in the pram. She went to one class a day mon-fri and then sat in softplay with her husband one day of the weekend and went to visit family the remaining day. Nothing changed until the 1 year health visitor review where they realised how little she could do, in all fairness she did kick it up a gear and her little girl was thriving after some hard work.
She was exhausted both mentally and physically, but as things go she wouldn't accept any help, subtle advice from family/friends. She had to realise it for herself.