How to get alone time without feeling guilty

I’m struggling with this aspect of my marriage. We’ve been married not even 2 years yet, and we have a 1 year old baby. Things are obviously stressful with a new baby, let alone figuring out our new marriage.

So I’ve stopped feeling like a zombie for two seconds to realize I’m really struggling and unable to get alone time. He’s always here. I spend my day looking after my baby, which I love, but when the baby goes to bed I’m always around my husband, having to do what he wants. Ive always been a bit of an introvert so not having time to recharge on my own in.. well a year has turned me into a depressed/numb zombie.

I’m going to talk to him about this tomorrow and tell him I need him to encourage me to have alone time. But even once he stops with the “aww but I missed you don’t go”, I’ll still feel guilty. I know he just wants to hang out with me so I can’t chill out or relax, but when I give in and hang out with him 24/7 I’m miserable.

Any advice?