Oh Jan, It really is sounding like you may have bitten off more then you can chew considering the recent illness and other crisis that have suddenly hit you. Maybe you can sew for some and buy for some this year then sew for the others next year? To have all these projects and circumstances hanging over your head with a rapidly approaching deadline is not good for you. Adds to your stress levels and may make you prone to make dangerous mistakes (like sewing through a finger or cutting yourself with rotary cutter!)
Do yourself a favor and take some of the stress off of yourself. If buying isn't an option, maybe some homemade treats might be in order for some of the grands. Or maybe some sweatshirts with a simple fusible applique design. You could whip those out fairly quickly but does involve purchasing the premade sweatshirts. Good luck sweety. And quit trying to push yourself so hard. When it is feeling this overwhelming chances are you have too much on your plate, and not of your own choosing with all the other unforseeable things that are happening in your life right now.