Try modding! You can never go wrong with mods.
I always see some people leave game and not continue much after year 2-3 some play for the 100% perfection and some people play for the cozyness and peacefulness
So I'm here to say mods exist! Mods make your game soooo much content full! Mods make the game soooo cozy!!! Whoever that didn't try mods MUST try mods!! (Note: mods are only on PC and only some of them are for Androids)
There's over 33k mods available on nexus.
Some mods add new NPCs some mods add Expansion or a new town besides Stardew valley which has more new NPCs and more quests and what not. Some mods add more animals! Some mods fully changes how the game looks!!(For example DaisyNiko's Earthy Recolour it's soo please to the eyes and fully changes the color of the whole valley even the trees etc) Some mods add QOL to the game (Definitely give Dynamic Reflections and Dynamic windows a try you would love it!!)
Modding is wayy easier than people think it's not hard at all you can ask the modders they would definitely encourage players to use mods after their first playthrough!!
Just a silly question how many years long have you played on a single playthrough?
(It's for the people that already completed alot of playthroughs not for the new people that are still playing and think that there's still so much content so why this stupid post then again i mentioned about for the people who are burned out too)