I keep jumping between games and never stick with one long enough to learn how it behaves. Are there any real tricks for spotting a slot that pays more often, or is it all down to luck in the end?

I stopped choosing games by theme and started reading the paytable instead, because the small combo values tell you far more about how a slot behaves than the artwork does. The comparison tools on https://yepcasino-online.com/ let me check games side by side before I committed to anything. That habit came from playing on yep casino online, where I also learned to stick to one game for a whole session instead of hopping around. My sessions have been far better since I made those changes.