Application

[Hematite12]

completely newbiieee, totally open to all the criticism

You start with a crowd, then
Reduce to a group.
Then it’s left with you and him. For them, The period doesn't make much sense, and makes the last part an incomplete sentence (if that's a stylistic decision, that's fine, but either way the period is awkward).
To pick and choose.

“Friends” who left with cheer and shouts, Why is "friends" in quotes? Fake friends? Establishes an air of the speaker's resentment towards these people, but I don't know why that's there in this stanza.
Waving that paper (at times email), jumping up and down,
They dance their joy out
Sing happiness out loud
Even the air is sweet
Nothing could stop them now. This stanza has a very nice rhythm to it.

But you,
Still in that dark corner,
Tie yourself to the chair.
You ripped your chest open, Awkward tense shifts here, and in the next line. Change this to present.
Carve out your bowls and heart.
With whatever other gestures needed,
To outsell yourself
Beg them that you’re special,
Creative,
Smart,
…
And many other things that are left,
As much as your long-drained dignity What is as much as their dignity?
Starting from when to yourself you secretly vow, A bit redundant, as was noted.
When seeing “the application is open now”. Nice, ending with a rhyme.

In reference to the other poster, while capitals have indeed gone out of style, some poets still use capitals, so make your decision to keep them or not with stylistic considerations, not out of obligatory conformity to contemporary style.

Good poem, man/woman.