A dripping faucet and a small hole in the drywall are the kind of repairs families argue about. They look simple, and sometimes they are. The question is not whether you are handy. The question is whether this specific job, in this specific house, stays small if it goes wrong. A washer swap that floods the cabinet is a different job from a washer swap that stays dry.
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Start with the shutoff
Before you touch anything, find the valve that stops the water to the fixture and confirm that it closes fully. If it does not close, or if you cannot find it, the job is not yours to start that day. Ask a plumber to look at the shutoff first. Knowing where the water stops is the first safety check in any water repair.
Take a photo before you take it apart
Photograph the parts as they come out and bring the old piece to the store or the parts list. A faucet washer or cartridge only works if it matches. If you cannot identify the part with confidence, that is a sign to stop. Mismatched parts cause the second leak, which is the one that goes unnoticed in the wall.
Decide where the job ends
Dripping water and cosmetic patches can be a family job. Anything that touches gas, wiring, the structure of a wall, or a pipe you cannot shut off belongs with a trade that handles that work. If the soft spot in the wall is larger than your hand, or if it feels damp or smells of mildew, stop and have someone look inside before you cover it.
When the patch is only cosmetic
A small crack or nail hole, dry and firm to the touch, can be patched and painted by someone comfortable with the tools. Test the surface by pressing gently. If the wall gives, the damage is deeper than the surface, and the patch will fail. Write down what you saw and bring the note to whoever is responsible for the house.
Who is in the room while you work
Plan the repair for a time when she is not in the bathroom or kitchen, and when someone else is in the house. Keep the path clear and the floor dry. A repair you do alone at night, with her route blocked, is not a small job for her, even if the part is small. Once the work is done, check the fixture and the wall again the next day.
When to call and what to say
If you stop, say what you found: where the shutoff is, what the leak looks like, and what you tried. A clear description saves the next person time and tells them whether the work is small or large. The job is yours when you can name where it starts, where it ends, and what happens if it goes wrong.