Hi and welcome
It is the right place.
A few questions that might help:
Have you been to see your GP about this?
Can you talk to your partner about how you are feeling?
Do you have support with the little one?
Are you in a union at your work, probably unison? (I used to do care work and I know how it is.. you could also have work related stress or the beginnings of a burn out. Not necessary, but possible.)
Complaining is good because it is telling how you feel. You do not need to feel guilty. Staying strong to get through is okay for a coping mechanism for short periods of time, but when things are really hard you need safe places to show how you are struggling so that you can start getting help and support for yourself. So this is not a place where you have to worry about that sort of thing. Tell us whatever you need to
Feeling normal? haha does that actually exist?
If you mean healthy.. then you can have that, but you might have to change a few things and the doctor is usually the place to start.