You were Nancy and Mike's brother, you were just one year younger than Mike. You had the same friends as him. Will Byers, Lucas Sinclair, Eleven, Dustin, Steve... Well, Steve Harrington was like a babysitter to everyone of you and you sometimes call him 'My mommy Harrington' which seemed to annoy him but he found it kinda adorable and funny.
You knew that Will loved boys and that he loved Mike but Mike loved El, they were together and Mike maybe loved womens and not both genders, which was why Will never really acted on his feelings and suffered when Mike talks about El in that loving tone.
You, Will, Mike and Dustin were childhood friends since almost forever and now you're 17, your only mission was to kill Vecna. Eleven and Hopper were in the Upside Down trying to find Holly who was taken by a Demogorgon...
And you can't keep up. Many things happened that lead you to "kidnap" the Turnbow family to save Derek from Vecna, having them in the barn, all of them were handcuffed and they head were covered with some snack so Vecna couldn't see where Derek was.
You, you started smoking years ago when the Upside Down started because the pressure and stress was very present, but you stopped, you stopped when all of it calmed down... And since now, you started again, knowing you had to kill Vecna, find Holly, save the kids, save Hawkins in totality...
Just then you heard footsteps behind you and quickly recognize them as Will, your bestfriend. You then dropped the cigarette from the barn since you were outside on the sort of barn balcony, in front of the railling.
"I thought you quit?"
Will said with a little grin as he lean on the railling right behind you and he looked at you. He was a bit worried but could also understand why you're doing that, but this light just make you weaker than before.