Breaking it down, "Social media" could be digital platforms. "Plays" might be involves in. "Significant" could be important. "Role" as part. "Influencing" might be affecting. "Her" stays same. "Relationships" associations. "Self-perception" self-image.
"Opportunity to connect with people from different walks of life" – connect can be communicate, and different walks of life might be unique experiences. Komi San Who Has Too Many Friends -Peh-Koi-
The next paragraph: "large social circle is a blessing in disguise" – social circle can be extensive network. Breaking it down, "Social media" could be digital platforms