Spent All Day on Slots and Still No Bonus Round!!!

I’ve been playing slots literally all day, and I just can’t seem to hit a bonus round! I keep thinking it’s right around the corner, but only get spins and small wins. I know it’s all about luck, but it’s so frustrating when you’re this deep in and haven’t hit anything big…
Anyone else ever have one of those days where the bonus round just refuses to show up? How do you keep your cool when it feels like the game’s teasing you?