Drop in (one's) tracks verb phrase
To die quickly and unexpectedly
Why do some people drop in their tracks while sleeping, doctor?
She dropped in her tracks in her prime.
To collapse as a result of over-exertion
She dropped in her tracks before crossing the finish line.
To fall suddenly and heavily to the ground
To die or pass away
1. To pass away
2. To depart suddenly
1. One's success has gone down or ended.
2. One has passed away.
The verb "drop" should be conjugated according to its tense.
Being perfectly suitable for one's interests or abilities
Jasmine really loves children, so being a kindergarten teacher would be right up her alley.