How to remove particles

So I just have a code that spawns a FloatingTextParticle by command

and on first command

PHP:

                    $level = $this->getServer()->getLevelByName("world");
                    $x = 252;
                    $y = 43;
                    $z = 120;
                    $hmm = new Position($x, $y, $z, $level);
                    $hmm = new FloatingTextParticle(new Vector3(252, 43, 120), "§ePlaying now: " . $this->songs[$this->index][self::NAME]);
                    $level->addParticle($hmm);

second is the same too so when I type the second command it just replaces the text so it kinda rude, how do I remove the first command particle after doing the second command?

In your code, lines 2-5 are completely useless.

This snippet demonstrates how to spawn a different-for-each-player particle that can change through a command.

Gist link

Spoiler: Preview gist here