I find the delegate more is fine in theory but you have to find them time to do the delegated job, which usually means you covering them for longer than it would have taken to do the delegated job yourself in the first place and that is when they do it without involving you too so two people are then working on one task 🙈
I cross out Sat & Sun in my work diary, and make a TDL for the coming week, I split the page into traffic light dots, anything important ‘must get done this week’ goes under red dot, anything ‘it really needs doing this week but can carry over to next week’ goes under orange dot, and the ‘I’d like to get done but it makes no difference when’ goes under green dot, it does keep me focused on the have to get done jobs when time in the office is limited (like all the time at the moment 🙈)