Do you feel like this too?

i am 24 just had my second baby and i feel like miss out. Don't take me wrong i was looking forward for that child and i am happy that he is here but my figure is ruined, i sit at home and tipe advice to people and be a homemaker even so i would like to go to school and see things and be more active. I feel so tiered and exhausted? Does anyone feel like that too. anyone who could advice me what to do that i don't feel so empty anymore