I've been having an issue where whenever I try to play a game with mods, the game is stuck on the loading screen.

I've played with more than 10 mods before in the past (20-22 max) but now with the new dlc and recent updates, the mods I use simply don't work the way they're supposed to because the loading screen is infinite, forcing me to close and then reopen the game. I really love the mods that have been made, and I use culture mods that don't affect gameplay.

I'm not very good at modding myself, so I have no idea if it's the number of mods I'm using at a time or if those specific mods are outdated. It's there anything I can do?

I suggest you to play with smaller subsets of the mods you use to try to pinpoint which one(s) are causing the bug. Its probably caused by outdated mods.