The back of your work looks like that for everyone
There is a particular moment, usually about three weeks in, when a beginner turns their hoop over and quietly decides they have no talent for this.
The back is a mess. Threads cross everywhere. There are little knots. Something has been carried three centimetres to save a rethread. Meanwhile every photograph online shows a front so tidy it looks printed.
What’s actually true
The backs in those photographs are not shown, and there is a reason for that.
Neat backs matter in exactly two situations: when the piece will be seen from both sides, such as a curtain, a hanging or some free-standing work, and when you’re stitching to a formal standard, as in some competition and heritage work. For a hoop that will hang on a wall, the back is structural, not decorative. It needs to hold. It does not need to be pretty.
What does matter on the back
Carrying threads. Jumping more than about two centimetres between areas of the same colour will show through pale fabric as a shadow, and long floats snag when you mount the piece. End the thread and start again.
Knots. They create bumps that telegraph through the front when the fabric is pulled tight in the hoop. Anchoring under existing stitches is neater, but if a knot is what gets you through your first pieces, use one. You can learn the tidier method later.
Bulk. Ending several threads in the same square centimetre builds a lump. Spread them out.
The general point
Almost every rule in embroidery that gets presented as a standard is really a solution to a specific problem. When you know which problem, you can tell whether it’s your problem.