Literally everyone does this. They buy the game, stare at the interface, and basically say WTF. I didn't touch it for months after I bought it. Keep in mind only the interface is complicated since you already know the ins and outs of the game.
Then I revisited it, and rebuilt the Nats. It took years to win a series even against the CPU. I had playoff heartbreak!
I think it's the best game I've ever played, and I'm in my 30s and generally not impressed by video games anymore. It's worth pushing through.
Starting with 2015 Nats, it took me until 2021 to win once, and I had the oldest, most expensive roster imaginable at that point. I gutted the team for prospects, picked first overall two years in a row, then won it all again in 2024. By then, my team was so stacked that I could trade each and every one of my walk year guys before the season or at the deadline, promote prospects, sign almost nobody, and have a .700+ winning percentage every year, collecting 6 more titles by 2033, including 3 in a row. I might actually be addicted.