@onghyrIf you've done the tutorial and economy playthrough from Singleplayer you can continue to Skirmish maps and do Scenarios. Its basically like half baked campaign, during that time you can increase AI difficulty once your comfortable and being able to beat easy ones. Single Player > Matches > Scenario > Default/Naval Maps > Arcadia(The first map). Once you complete then go to the next. Afterwords you can transition to Map Type > Skirmish and choose any map you like. If you get bored then Go to Map Type > Random and choose whatever you like. Get Feldmap mod and even community maps, for more... maps. Got'em! After completing, you can now pick a civ you like to focus on then watch some general replay of how people boom by being efficient and using batch training. Watch on Youtube, Replay Pallas, Multiplayer then compare it to your replay against AI, once comfortable you can try play with others in Team Game, you'll probably lose. Being able to reach 100 pop in around 7 minutes is a good indicator your a good player assuming you don't get attacked also depends on map. My limit for citizen on fields is 40-60, smaller is better as I don't need that much food. economy is important to be able to do any playstyle. Hotkeys, especially Control Key, Call To Arms. Order One Unit, Select Idle Unit, Select Military/Non Military, Patrol, Select Wounded Units, Garrison, Capture, Attack Units Only, and such is useful so place them, where your hand can reach. Use setting default to 200 Pop(makes it easier to understand your limit), Disable Treasure,  Thats all I can think of.

I’m completely new to this game and still trying to understand the basic mechanics and strategies. Are there any tips, beginner guides, or common mistakes that I should know about before progressing further? I’d really appreciate advice from more experienced players to help me get started and enjoy the game more.

Working on the splash/preview image for a video:  

Yeah the switch made that feature go awat

@Average Concept Enjoyer https://github.com/Yekaterina999/Judeans-Hasmonian https://github.com/0ADMods/judeans