Am I the only one struggling

Monica • Baby boy born 8/7/18. Baby girl born 3/9/16. Learning so much about life and love being their mama.
At 3 months, is anyone else seriously having the hardest time with lack of sleep? I'm so tired it makes me cry almost every day and it's hard to find the energy to be the best mom I can be. It seems like everyone else is doing okay and getting enough sleep to function.