What are my chances of receiving merit & other advice needed!

Oh, and merit money: https://www.ohio.edu/admissions/tuition/scholfinaid/signature.cfm

OHIO Premier Scholarship
Four-year renewable scholarship
Amount of award: Up to full in-state tuition
OHIO Signature Scholars who are admitted to an Honors Tutorial degree program are eligible for consideration for this scholarship.

OHIO Trustee Award
Four-year renewable discount applied to non-Ohio resident surcharge
Basis of award: Academic merit
Amount of award: $1,000–$7,000 per year
Admitted students must earn a minimum ACT composite score of 22 (or a combined math and critical reading SAT score of 1020) to be considered. Award amounts are offered on a sliding scale based on both standardized test scores and academic performance in high school.

(with your stats, you’d qualify for the higher end of that, so all of that should add up to approximately 75-80% of tuition in merit scholarships)