Now I am speaking to the higher level players from Stake now..... (Platinum and up) .... Did your win percentage drop when you leveled up to higher levels? I can remember lots of $100+ wins on $0.10 and $0.20 and $0.25 bets when I was Non VIP to Silver.... but since I reached Gold and Platinum... I hardly ever see any $100+ wins...? ((The Fire is Gone))
Is this just my imagination .... or do you have the same experience? (Some of my friends are still Bronze and Silver and they regularly send me brag screen grabs of their $100+ wins....)

Stake is still a awesome site, but I am just worried that my VIP upgrades will reduce my winning
Our VIP rank has nothing to do with our luck, so it is completely your own feeling because you have better luck in the past than the current time.
It is basically common thing, as we all know that there are many people says "when you start gamble for the first time then you'll get more win but you'll get more lost once you do it longer"
My suggestion, try to play other games or try to take a rest for a while to get some relaxation.