What is the point

Everyday I find myself searching for the point of life. My parents are both gone and kids are grown.  Now what? I keep hoping everyday to find the answer and nothing. I try to talk to my husband but he just thinks I'm being silly. I try not to burden my kids so I feel completely alone. Everyday I get up hoping things will be better but nothing changes. My mother passed away from cancer a couple years and I was there during everything including her stay in hospice and I just don't get it. We spend our whole life working and trying to accomplish things but for what? We just suffer and die and someone gets to rummage through your life of things collected and it's pointless. I feel like I'm rambling but I just don't understand what this is all for. I'm I my mid 40's and everyone says I'm too young to feel this way. I just am not sure where to turn.