Well, so obviously LoA isn't about visualising, setting reminder and working hard. It's about what you believe. I guess you are pretty new to LoA. Don't have to be always the case, but when I look back on my "LoA career" I often "tried" to use LoA on things that felt impossible to me or at least when I was lacking belief/worried about the outcome. Didn't work out of course. If you had fully believed it, you probably hadn't needed a reminder.
It's not about the application. You could have not applied at all and if you had still fully believed you would go to that university, it had happened. Of course that's really hard to believe, but not impossible.
And besides it being really nasty to say that others shouldn't gotten in, it's a clear sign that you have a belief in lack going on. They didn't take your place away, you did.
When I applied for an university place that seemed impossible to that time, I built my belief up over months until it was unshakable. I knew I would get in. I didn't accept no for an answer even though I seemed to get rejected at first. But it didn't kept me from believing. Guess where I am today?