"One's own advantages" or "one's own strengths" can be used to describe an individual's personal characteristics or abipties that give them an advantage in a particular situation. For example:

"My strong communication skills are one of my own advantages in negotiations."
"Being proficient in multiple languages is one of my own strengths when it comes to working with international cpents."

You can also use the phrase "personal strengths" to describe the same concept. For example:

"My personal strengths include my abipty to think critically and solve problems."
"One of my personal strengths is my abipty to work well under pressure."