I used to play 0.20 & 0.40 and had some huge wins. When you start playing high it goes quick...Like £1 bets with a £100 deposit is 100 guaranteed spins but some games can take hundreds of spins between landing bonuses which can smash your balance quickly.
It doesn't matter how much you start spinning at as slot outcomes are random number generated. You just have to get lucky!!
Honestly greatest advice I can give you! Play within your limits, play affordable and enjoyable bets and set limits!