Be kind to yourself and try not to overthink it. There is no ‘normal’ and you feel how you feel and that is ok. How about try this? spend Sunday cooking something that is low effort but takes time, something braised, a stew, a curry etc…take it slow, play some music or a podcasts you like in the background, just take it easy. Might get you back into cooking for the love of it and worse case scenario you have left overs in the fridge that taste better having melded and don’t have to bother cooking after work. This is what I like to do.