FYI - it will be difficult (if not impossible) to minor in graphic design at many T20s. That’s considered a specific, technical skill and doesn’t align with the undergrad academic models at many of those schools.
Here’s an article that might help you get to the top ranked schools that have programs.
Without rank, chancing is very hard. Obviously you have a good SAT and your ECs support your intended course of study. It’s just a numbers game applying to T20s and in a normal year there are 40,000 students with a 1540 / 35 and a 4.0 all competing for the same spots.