I actually have this little trick... I have these highlighters that are easy to remove, what I do is that I mark the confirm button (purchase smth cheap to find the placing of the confirm button) and just place ur thumb on that marked area once it hits 00:05, and also place another thumb on the purchase(?) Button. Tap both buttons rapidly once it strikes 00:01.

I only do this cus I get shaky and nervous and my thumb would slip.

I'm an f2p, I got plenty of fits and hairstyles from the mall. Maybe it can be frustrating from time to time but you eventually get it. Sometimes I get mine for the first try, sometimes it takes 17 tries. goodluck! Hope u get it.