Will I get the flu? Can I prevent it until after next Thursday?

Lilin_spade
Okay so, long story short, I am suppose to provide music for my school's open house next Thursday and have been working very hard to obtain this position. Recently my dad got sick. I was talking to my mom in her room, when my dad came in a and yelled at me because he had laid where I was for a little while. My mom lied and told me he didn't.

Will I get the flu? I'm really worrying about missing this recital. I have worked really hard for it. Is there any way to prevent it? I got my flu shot on Monday.
Will I get the flu? Can I prevent it until after next Thursday?
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