Anyone with experience on music notation, which is the right way to transcribe this?

I'm kind of training myself to transcribe music (and learning musical notation in the way) so I've wanted to learn all that by transcribing a pop song. (Also, i'm doing this because of a karaoke project i want to make)

The problem is, i'm at the chorus and idk how it should be transcribed, should i use slurs at the "healthy, not me" or are these glissandos? Also, are grace notes ok in this part?

Since i can't upload audio, let me say that the source of the transcription is the chorus of "good 4 u" by Olivia Rodrigo

Any other tips are welcome too

[EDIT] Yeah i know it's missing a note in "Not" in the first picture... It should be making the glissando to the next note... I'll add it if needed

[EDIT 2] Maybe i can send a better reference of what i want to transcribe... Here's some gameplay of Rock Band which transcribes the vocals i want into a MIDI of some sort