You will find yourself in due time. It was the same for me, didn't actually fully click till he went to 3K and I had free time again that I realized the extent. You got this take it day by day. Even if that's starting with something small like trying a new hobby.
I feel like this too. My husband been out of work since April and now at home all time and I feel like I have no time for myself. No peace and quite. I feel like I've lost my identity too. I don't ride my horses anymore, they've been sat in field for 6 years doing sod all. I just don't know how to navigate my life with 6 kids to fit it all in and feel guilty if I go have any time for myself shopping without him being with me 24.7. Your not alone xx big hugs.
My baby is around the same age, it has been the exact same for me. I lost myself in being a mom but I’m slowly finding my way back. You got this!