Ok I'll try n explain my problem without giving too much away

My problem is, on pulling the card backwards I sometimes bring back 2 or 3 cards at a time

I was wondering if fanning powder would help - I've never actually used this cos I'm not into flourishes and fancy spreads etc so I don't know just how effective this would be and if it would be of any use at all

I've also tried pressing harder and not as hard - it seems to be random - sometimes it's ok and I think "ok I've got it now " and other times no matter how hard or lightly I press, I'm always bringing back more than 1 card

Before anyone says it - yea I know I need to practice more - but is there any other advice anyone can offer please ??