"I've kind of been in adulthood for a little bit now," Winter says in the current issue of PEOPLE.
And she means that in both the figurative and literal sense.
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That feeling of support is not something Winter has always had during her childhood spent in front of the camera.
"I was put in the industry when I was 4," says Winter. "I love what I do, but I don't know if it's a choice I would have made on my own."
Winter was first cast in a Cool Whip commercial, then booked small TV and film roles. At 9, she began voicing characters on Disney's hit Phineas and Ferb.
Even then, Winter felt the pressures of Hollywood.
"People criticize you at an extremely young age," says Winter, whose hair was dyed black for the first time when she was 7 because it was believed it would make her more marketable. "There's a lot of rejection. I heard no thousands of times. That was hard to cope with."
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"I think the world of Ariel," says her on-screen dad, Ty Burrell. "She's so mature and composed."
Winter – who also voices the title character on Disney Junior's Sophia the First – is now applying to colleges but has no intentions of leaving the safe place she has created for herself.
She's applied to over a dozen schools, but she ultimately hopes she can attend college in Los Angeles so she can continue working on Modern Family and living with her sister.
"I love living with my sister. She's my best friend, and I love her husband and their babies. My nieces are my entire life," she says. "I've found a happy situation for me. So there is not really a reason for me to leave until they kick me out!"