Make the job smaller
Choose one shelf that your child uses most days. Leave the closet, the dresser, and the rest of the toys alone for now.
Set a short timer if that helps you begin, but treat it as a stopping point rather than a deadline. A ten-minute reset can leave a useful starting place even when the whole shelf is not finished.
Look at what is actually there
Take the contents off that shelf and keep them nearby. Make three loose groups: things that belong here, things that already have another home, and things you need to decide about later.
Carry the second group to its existing homes before starting another project. Put the undecided items in one temporary container, with a date to revisit them, so the decision does not disappear into a permanent mystery box.
Put play partners together
Notice which things your child reaches for together. Blocks and the small figures used with them may work better as one group than as two perfectly separated collections.
Give the most-used group a spot that is easy to reach and easy to return to. Save difficult lids, nested containers, or carefully arranged stacks for items an adult manages, rather than making them part of an everyday cleanup routine.
Leave room for the return
Put the toys back loosely and stop before the container feels crowded. If returning one item requires moving five others, the shelf is asking for more work than it needs to.
Try taking out a typical handful and putting it back. Watch for a lid that catches, a book stack that tips, or a basket that is awkward to move; those small obstacles tell you more than a perfectly styled photograph.
Try it with your child
Ask your child where they would look for a favorite item, then compare that answer with your arrangement. If the answer surprises you, change the location or add a picture label instead of expecting the system to explain itself.
A useful test is one ordinary play session followed by a short return together. Notice what gets left on the floor, because it may need a clearer home or a simpler way to get there.
Keep the next step small
Use the shelf for a few days before buying another storage piece. You may find that moving one divider or changing a category solves the problem with what you already own.
When you are ready, repeat the same process on the next small area. The aim is a room that is easier to use and reset, not a room that stays untouched.