Worried I may have been doing wudu wrong all this time - need some reassurance, assalamu alaikum

Assalamu alaikum. I’ve always washed my feet for wudu by getting my hands wet and rubbing the feet up to the ankle because my basin is too high to put my foot in. Lately I’ve seen people show a method where they sort of cup water and pour it over the foot, then rub. My way left my hands dripping and then I’d rub the feet. I’ve also heard that for washing a limb you need flowing water, not just wiping like with the hair, and that two drops must fall from the limb to count. I read about this and it made me uneasy, so I tested what I used to do: I pulled my hand away after rubbing and counted drops from my foot - three drops on the first try, five on the second. That felt borderline. Now I’m worrying that either I’m over-applying a strict opinion that goes against the common Sunni view and maybe my prayers were still valid, or that sometimes I didn’t get enough drops and about 5–10% of my prayers might have been missed. I’m really stressed thinking I may have lost prayers like fajr or others I went out of my way to make. Can anyone kindly advise: is the way I described likely valid according to the mainstream rulings? And if I find I was mistaken, what should I do about the past prayers - do I need to make them up, or is there a merciful ruling on this? JazakAllah khair for any clear, gentle guidance.