Get with a friend who shares your love for these shows and open a discord server where you play-by-post Roleplay/Story write fanfictions in those shows universes full of original characters and having all kinds of fun
Final stage, you and your friend, now tempered by the firey forge of dozens of fanfic collaborations, move on to co-authoring ORIGINAL WORKS
You'll gain the ability to make infinite dopamine by making your voice heard through fantastic story