Whining that you can't function without someone to hold your hand ridicules all the people with real problems.
NoJustYou
None of it a real problem, but cumulatively, when you are the one who has to get it all done or else it won't be done, then all of it becomes a relentless uphill slog.
Whether you are a DIY whiz or super-organised and disciplined, or able to multi-task like a world champ, you always have to work around the fact that there is only one of you when you are a single parent.
So there is the extra planning of operations that is required as well as the work itself, be that setting up the tree, painting the hall, clearing gutters, getting the garden in order once a week, keeping on top of bills, finding deals for utilities and insurance, trying to organise a few nice outings for you and the DCs, having DCs' friends to play/sleep over, researching and organising a holiday for everyone and taking everyone there, supervising them 24/7 (not much of a holiday for you then...) and and on top of seasonal tasks and weekly stuff there is also the ordinary daily stuff that everyone needs - cleaning, laundry, cooking, keeping track of school calendars, keeping track of the shopping list, listening to the woes of the DCs, kissing the boo boos, keeping the monsters under the bed at bay, trying to jolly them along. You do all the grunt work and carry everyone's burdens big and small, and there is nobody to share it.
Then, as happened to a friend of mine, after ten years of keeping all the balls in the air all the time (including a full time job) you go to a job interview and get told you don't have enough management experience [hollow laughter].