According to the College Board’s website (http://www.collegeboard.com/html/academicTracker-howtoconvert.html), a 3.77 unweighted GPA is equal to a 90-92 on a 1-100 scale. While that certainly is not mediocre, does that GPA place the OP in the top 10% of their graduating class? If not, the OP’s chances are significantly reduced.
In addition, it’s also worth noting that the OP’s unweighted 3.77 GPA is out of sync with their perfect 36 ACT, which begs the question: Why isn’t the OP’s GPA higher, as their test scores certainly indicate they are a top test taker and could have done better in school. That is going to be a red flag in Admissions unless the OP’s guidance counselor reports the OP’s GPA is one of the highest ones in their graduating class.