When did you get out of the “just surviving” phase

LO is 5 months and while some days are better than others I am sitting here today just feeling like a shell of myself. Last night LO was up most of the night( I think teething), and it was BRUTAL. I am back to work as well so that is not a lovely combo. I am just wondering when you got out of the just surviving phase. I can’t wait to not feel like a zombie person anymore, and I truly feel guilty that I can’t enjoy my baby the way I want to because I can barely function.