Is this sentence of mine a very good one?

Assuming that they pointed their guns at you also, here is my suggestion:

A handful of cops barged into my room, pointing their guns at everyone inside, including my parents.

This avoids the awkwardness of "all the other people" and the repetition of "room."

Doctor D, I am NOT included among those people at whom the cops pointed their guns.

RommelI am NOT included among those people at whom the cops pointed their guns

Because you were a child, I suppose. Then:

A handful of cops barged into my room, pointing their guns at my parents and everyone else except me.

Mister Micawber, thank you very much for making my sentence clearer. I wish I could be an intelligent grammarian just like you.

Mister Micawber, would it be fine if I write the sentence Then, two white-clad ladies, whom I guessed were social workers, took me away from the scene as they murmured, ‘You’re safe now, little boy…’ after the sentence All of a sudden, a handful of cops barged into my room, pointing their guns at my parents and everyone else except me? Would there not be any connotation that t

RommelMister Micawber, would it be fine if I write the sentence

Yes.

RommelWould there not be any connotation that the two white-clad ladies were among those persons at whom the cops pointed their guns?

No.