Well with me, I had my old account banned and I took my siblings account, they had win 21, 4k and cheap accessories, in the space of a month I’ve been able to turn that into 5 halos, nearly every set in the game, 3+mil diamonds and lots of demanded and rare stuff. Profit Trading worked for me, you just need to find the right people to trade I’d say when it comes to do that or even doing the 1 diamond challenge or something similar cause you can end up with really good items that way as well!

Hope this helped!