You don't need discipline. You need company.
Task initiation is a wall. Body doubling is a door. Pick a tiny window, and this timer will sit with you while you do the thing — or while you work up to doing the thing. Both count.
What's the thing?
Naming it can help some brains; skipping it helps others.
Pick a window. Small is the point.
This is a body-double timer: it keeps you company, it doesn't supervise you. There's no alarm, no siren, no red flashing judgment. When time's up, it just tells you gently.