How to deal with new financial situation

Hello everyone, first of all, I corrected the spelling via Chat GPT. Maybe it's written a bit confusingly. Sorry about that... it's not easy for me to write this, but I need some tips from you. To be honest, I feel a bit like a failure at the moment... The following situation: We are going to be parents next December. My girlfriend (36) then receives parental allowance of 900 euros for two years (she splits the maximum rate). I (37) earn 2,300 E