this is my header

;; === HEADER SEGMENT === ;;
.segment "HEADER"
.byte "NES", $1a
.byte $02 ;; PRG ROM x 2
.byte $01 ;; CHR ROM x 1
.byte %00000000 ;; mapper and mirroring

I would suggested hopping on the nesdev discord. There are people on there that give lend you a hand!

https://discord.gg/dsd5FxfY2q

You can also ask for help on the forums if you prefer:

https://forums.nesdev.org/

ok thanks :p