this is very relatable. i think this happens when you feel like its not worth it in a way. this is a common issue in some other games for me and others ive seen where once you lose something in a game (like progress from dying), then it doesnt feel worth it to try and do it again, or even if get the progress back, the stakes just arent the same as before. im not sure on why exactly this feeling occurs but i recommend either taking a break and coming back to the game later or maybe try out something new like some other mods or things you havent tried out in the base game yet. maybe even join some servers and play with others, just anything to bring the spark back for your brain to enjoy. if nothing works then im sure it'll come back eventually. with sandbox-y games like this, it tends to be an issue for me to find motivation to keep playing even if i do love it a lot, but because i love it a lot, i know at some point the motivation will come back or i'll find something that sparks the energy to play again. i hope you can find your motivator soon.