Forget that thinking mate. There's no such thing as either dice or slot or any luck-based games are predictable. If playing dice is easily be predicted by you, can you share some of your roll histories? Maybe you just got lucky but I doubt your winning happens regularly.

Slots can't be predicted not because it's hard to predict but they are programmed based on the site's edge. If you want to test your luck at slots, choose slots with great RTP but don't think it's a sure win.