What punctuation goes where in this sentence I can’t wait to get my diploma my next step is to go to college

a comma goes in between the diploma and my, then a period at the end.

Explanation:

I can’t wait to get my diploma, my next step is to go to college.

I can't wait to get my diploma, my next step is college

Explanation:

as for symbolic actions, the narrator's tearing down the wallpaper in an attempt to find the "woman" in the wallpaper represents her struggle to retain or regain her sanity.   the wallpaper has been part of her confinement and by her tearing it down, she is freeing herself from that confinement.