The idea of "discovering your style" before you start is what complicates everything. Actually, you discover it by reading, not by thinking about it. The best strategy is to start with recommendations from people whose taste you respect, but don't take it too seriously if the first book doesn't grab you. Read a chapter or two and if you get a "meh" feeling, forget about it. Nobody's obligated to finish a bad book, especially when you're just starting out and want to develop a taste for reading.
What I'd do: grab a book that a friend recommended with genuine enthusiasm (not just generic "oh, it's good"), go with your gut and give it a shot. If it doesn't work out, move on. Try another one. After reading like half a dozen different things - whether they're thrillers, romance, sci-fi, whatever - you start to notice patterns. Like, maybe you realize you like stories with well-developed characters and less plot full of plot twists, or the other way around. On Skoob, when you find a book that caught your attention, also check out the reviews from readers who describe what they thought (not just the star rating).
A practical tip: start with something accessible, don't try an epic thousand-page book right away. Shorter books or ones that seem like a quick read take the pressure off forcing yourself too much. And ignore the hype a bit if it's not clicking for you - just because everyone read a book doesn't mean it's the right one to start with now.