i dont know if it's "depression" per se but i do have this feeling that my life is stagnant and a fear that i can't achieve success....

i do believe they refer to that as "quarter life crisis"

but yeah puffy, my mom had a good friend who had post partem depression and from what i saw, it wasnt a pretty sight. the best thing you can do is just stick with her and give her as much support as possible. she will get through it. therapy and meds wouldnt hurt either but certainly not required.