Step on (someone's) dreams

Translation of "step on (someone's) dreams" into Russian

разрушать (чьи-то) мечты

I don't want to step on her dreams, but she needs to be realistic.

Я не хочу разрушать её мечты, но ей нужно быть реалисткой.

To discourage, undermine, or prevent someone from achieving their goals or aspirations, often by being dismissive, critical, or unsupportive.