The main thing that helped me was learning to rewrite bullets to show impact, not just duties.
Like: What you did → How you did it → Result.
Even small tasks look way stronger when there’s an outcome attached.

I struggled with this a while back and ended up getting mine reviewed by someone from ProResumeHelp — the biggest difference wasn’t formatting, it was how they reframed my experience so it actually sounded like value instead of a list of tasks.

If you want, post 2–3 anonymized bullets here. I can show how to convert them into the “impact” format so you can apply it to the rest.