заниматься своими делами

attend to one's affairs (maystay); go about one's business (A.Rezvov)

tend one's own garden (Go ahead and tend your own garden first before moving on to anyone else's plot of land. VLZ_58)

Makarow.

attend to one's business; be about one's business; go about one's duties; stick to to one's business; take to one's business

zitat.

cultivate one's own garden (To take care of one's own needs before trying to take care of others: "The mayor ought to cultivate his own garden before he starts telling the governor what to do." This is the moral of Candide, by Voltaire : take care of your own, and the world will take care of itself. VLZ_58)

заниматься своим делом

Allg.

stick to one's last; up one's alley; mind business; go about business; mind one's affairs (Aly19); paddle your own canoe (He decided to paddle his own canoe and set up his own business. Interex); mind one's own business (artery); hoe one's own row (Foote was not a loner, but one who had learned to hoe his own row in virtual silence. Alexander Demidov); keep to oneself (Liv Bliss)

Amerik., Makarow.

hoe one's own row

Geschäftsvokab.

mind one's work

idiom.

cultivate one's garden (z484z)

idiom., umg.

butt out (В.И.Макаров)

Makarow.

attend to one's business; mind one's own to stick to one's own knitting; mind one's to stick to one's knitting; stick to one's last

umg.

do one's thing (L.A. is so spread out, most Canadians don't have time to socialize, everybody's busy doing their thing. You think we're getting together over a Tim Horton's coffee and maple syrup pancakes? ART Vancouver); wind one's neck in (MichaelBurov); wind their neck in (MichaelBurov)

занимайся своим делом

Allg.

stick to your last!; mind one's own business

Amerik.

stay in your lane (Taras)

Makarow.

mind your own business

занимайся своими делами

Allg.

go about your business (A.Rezvov)

umg.

mind your own affairs; stick to your knitting (контекстуальный перевод Ремедиос_П)