Takes me forever to go to bed now!

My son is basically sleeping through the night.. but I'm usually up 2-3 hours after he's gone to bed! I'm doing a little housework maybe.. I'm washing bottles and nipples and premaking formula for the next day... I'm setting out his outfit for the day... I'm re-packing the diaper bag if we used it which we do most days... I'll do loads of laundry whether it be baby's or ours.. I'm folding that damn laundry that never ends... and some nights I just take a few hours just to have completely to myself.. because it's really the only time I have time to myself other than the 3 nights a week I work. Even if i just stay up and catch up on my favorite shows.. or browse Pinterest.  Because my son is a TERRIBLE napper and some days I barely have time to shower. My SO works nights and his nights off he just hops right in bed not too long after baby does.. must be nice lol I have tried to ignore all the things that need to be done and just go to sleep but I can't shut off I just think about all the things!!