expand (one's) horizons
To have or seek out new experiences, especially if one's experiences have been relatively limited. I'm really nervous to live at school, but I know I need to expand my horizons and get some experience living without my family. I can't believe that Molly has never left the state before! She seriously needs to expand her horizons! In my 20s, I was excited to expand my horizons and move into the city. Now that I'm in my 30s, though, I'm ready to go back to the suburbs and settle down.
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