How do all you mommies juggle housework, a new baby & older children!!

I have a 2 month old and a 5 year old boy! I'm currently staying at home, I will until probably the end of the year. As much as I love seeing them grow up and being part of their daily life! I'm extremely exhausted. I don't know how to juggle it all between housework, meals, breastfeeding, caring for a baby, T-ball, I feel like I am not giving it my all. My 5 yr old often lacks from my attention because I just can't figure it out. Is anyone out there feeling like me? Even my house is not as tidy as it usually is and it drives me crazy but I'm trying to use my time wisely!