(Ever) since he/she started going to nursery, I’ve had to do a lot more sewing.
(Ever) since my daughter/my son started nursery, I’ve had to do a lot more sewing.
「幼稚園に行くようになってから、何かと縫い物仕事が増えた」は英語で (Ever) since he/she started going to nursery, I’ve had to do a lot more sewing もしくは (Ever) since my daughter/my son started nursery, I’ve had to do a lot more sewingになります。
裁縫 - Sewing
幼稚園 – （英）nursery (school) / （米）Kindergarten
Ever since- その後ずっと
Since – 以来
イギリス 
