Sincere advice here: you're only playing a few notes in the whole song which is normal for punk so I would keep practicing the song but every time you play it look at the fretboard less and less until you just need quick glances every once in a while. Once you're comfortable start headbanging a little and moving around the room more. Finally, and you don't have to do this, it might actually be bad for your health, BUT punks tend to play with their instruments very low. Just sayin.

