ive done it to outdoor plants, but ive never seen any real gains from it, either nothing happened for a week or the buds grew but also got moldy. id advise against it.
Partial harvest stresses plants and leads to degraded flowers.
Just harvest the entire plant all at once when mature.
The plant and flowers will die if left too long.
Noob answer.
Your bud clipping should coincide with trichomes becoming ready.
Get a 30-60x magnifier.
Your plant cant flower for ever so once you hit the treshold of 50% amber trichomes it’s time.