I need help ugh?

it's been a month since I met my boyfriend, at first I wasn't thinking about him seriously, so I lied about my age, then gradually I started to fall in love with him, so it progressed a little, we met, I told him that I didn't win the university. I told him I was going to get ready again this year, but there's no such thing, actually, I haven't finished high school yet. she's going to college in 2 months, do you think I should tell her when she goes to college or should I tell her now. i'm so embarrassed, we're only in the first week of our relationship
I need help ugh?
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