Puberty is a time of big changes, in your body, your emotions, and your relationships. Two things are very important during this stage: feeling mentally strong and feeling connected to others. Mental well-being means feeling good about yourself and your life. Social well-being means how connected or lonely you feel. You can feel social loneliness when you feel left out or don’t have enough friends, and emotional loneliness when you miss close, trusting relationships. Support from your family can help you feel better in both ways. But not everyone experiences the benefits of that support in the same way. This study looked at teenagers in Flanders and asked: “Does feeling supported by your family help you feel mentally better and less lonely?” And more importantly: “Does that work the same way for teenagers with a migration background?” The short answer is: yes, family support really matters. All teenagers who feel that their family is there for them tend to feel better mentally and are less likely to feel lonely. But this positive impact is not as big for everyone. Teenagers whose parents were born abroad (second-generation youth) seem to get a stronger mental health boost from family support. Sadly, they also feel less supported on average. On the other hand, teenagers who were themselves born in another country (first-generation youth) experience less impact from family support, especially when it comes to feeling emotional loneliness. For them, feeling emotionally close to family can be more complicated. This research shows that while family support is important for all teenagers, how it feels and how much it helps, depends on your background and life experiences. That’s important for everyone who works with youth, especially those from immigrant families. Programs that help families grow closer, by improving communication, mutual understanding, and emotional connection, can make a real difference. But these programs should fit each family’s culture and situation. What works for one family might not work for another. Health works, teachers, and policymakers should recognize the many ways families work today, and how they can best support youth well-being in a diverse and changing society.