Ariel Winter is all grown up!
Last week, the Modern Family star, 18, graduated from high school – and now she’s celebrating. On Sunday, Winter took to Instagram to share a special message thanking her sister Shanelle Grey, along with Grey’s husband David, for arranging a gorgeous graduation party for her.
“Couldn’t be more grateful to @shanelle_gray & @davidbarrygray for throwing me the most amazing graduation party ever last night…the amount of love and support they’ve shown me for the past four years has been life changing,” she captioned a picture of herself wearing a pale pink cutout dress at the party. “My sister is my absolute best friend and my everything… Thank you so much. I couldn’t be luckier or more grateful.”
“I was in awe last night and I still am that you guys love me that much to do all of that for me,” she continued. “I never would be where I am today without you two…you guys saved me and taught me to be the person I am today.”
Winter went on to thank her father in the post, as well.
“Dad…I love you!!! Thank you for always being there to support and love me as well and always put a smile on my face no matter what :),” she wrote. “I’m so grateful for the bond we now share.”
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“Anddddd thank you SO MUCH to all of my amazing family members and friends that flew in to celebrate with us – you guys are the absolute best. Thank you also to the ones who didn’t have to fly in…so much love was felt all around last night. Thank you thank you thank you!!!!!! Class of 2016… #uclabound.”
Winter also dedicated a separate post to her dad to celebrate Father’s Day Sunday.
“Happy Father’s Day to my amazing dad,” she wrote. “I’m so grateful to have you in my life. You’re always there for me, and I couldn’t be more grateful for your consistent love and support. I love our little inside jokes, and how we can make each other laugh until we start crying and actually can’t stop. I’m so grateful for all the amazing daddy-daughter memories we’ve made over the years and I can’t wait to make more throughout the years. Thanks for being the real MVP and the coolest/best dad out there.”
Winter confirmed in April that she will be attending University of California Los Angeles in the fall. The star has previously spoken out about not letting her acting career keep her from furthering her education, telling PEOPLE earlier this year that she had applied to 17 undergraduate programs.
“It’s always been a dream of mine to become a lawyer, and social justice just feels like it fits for me,” she said. “I want to continue acting and also go to law school. I think the more knowledge you have, can only better your life.”