Your resume needs to be the right length. This may seem obvious, but this means, not too short, but also, not too long.
Too short would be less than 3/4 of a page. You should be able to fill one page. More than two pages is too long.
Too short is an easy problem to solve. If you don't have much job experience to include, then you can say a little more about yourself. Think of any accomplishments or achievements you have that would tell someone a bit more about yourself. For example, any awards you may have won, clubs you may be a member of, that sort of thing. You can a section like "Additional Accomplishments" or "Personal Information" to call out these things.
Too long can be worse than too short.
A hiring manager may have a stack of 50 resumes on his or her desk, and not much time to go through them. This is very common. Your resume needs to get their attention and make you stand out.
The way you do this is by picking just your key accomplishments - the ones that are most likely to impress - and making sure they're front and center. And concise.
In your previous work experience, list the job, your title, and then two or three sentences that describe what you did and how you were good at it. Did you lead a team? Ship a product? Close some key sales?
Employers want to know that you'll get the job done, and you've only got a few seconds to convince them. Make it count.