Personally, slots give me frustration and lack of excitement, I am just full of emotional anxiety, it's also prone to let people get addicted with the dopamine rush
You should try slots with play money/demo mode. Buy at least 20 bonus buys or do 5000 spins in play money/demo mode. You will realize that it is hard to win. I know you already know that but this is how your subconscious will also agree with you and you will not feel anxiety. And one more thing, 99% of the time you will thank yourself that you did not deposit real money

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There was one recent video I watched with one fella wagering $1,000,000 including bonus buys on slots. The results were disappointing to say the least