SAHM help

I have a two year old and 5 month old. Life is so hard now. Someone always needs something and I feel like im not giving enough attention to both of them but really im either with one or the other. It makes me feel guilty. Some times I dont even get a chance to eat because im so busy. They use to both be on the same nap schedule but now my 5 month old wants to take her long nap at 5 in the afternoon 😩 and just a quick hour nap in the middle of the day. It use to be opposite and was great they both slept good for a few hours. It gave me a break. But now shes off that schedule and idk how to get her back on the mid day nap. This momma is struggling when does it get easier?!?!