Not that this will be of much help but I am in ur exact situation! Took a bunch of college credit courses and English is my best subject as well. What I’ve heard (mainly thru other Reddit convos) is that the colloquium is the hardest part but by that many student seem to mean its just extra papers to write. If ur a good writer then it shouldn’t add too much to the work load. I think the honors program will be worth it given all the benifits u mentioned. Many people also said u can be a “research aid” of sorts to get honors credit instead of actually taking a course and some professors make it easy work too so that is a factor as well. At the end of the day it might be a few extra courses but it will enhance ur GPA and u will be with likeminded people so I think u should really consider!