Hey, thanks for the comment! Audio is definitely the next thing I want to work on, I think the game could seriously benefit from it. I'll have a look into the links you sent :)
You will found sounds with the first Website. I found most of my audios with it , you even have thematic packages of sounds. But I not needed of cute sounds or cooking sounds for my own games yet :). It seems you have musics on itchio but it seems complicated to find sound effects on Itch.io, however.