How can you have 1000+ hours in a single game, work on a personal project for 10 months, spend 4 years writing a novel?
Have more than one interest/hobby! I can’t imagine doing the same for months on end with no alternative. I naturally gravitate to a monthly rotation (not consciously, just kinda happens) of high interest in something, and then there’s a few things I do whenever (read a book when I have a few minutes here or there, do some cross stitching while watching my husband play a game, etc).