Most likely you'd spread some diseases that we're all immune. You wouldn't even explain how did you get there and that you're not a heretic due to the language barrier, so probably end up burned alive or something.

Bold of you to assume you'd go anywhere speaking only modern day English

Do not tell me what to do 😡

Nate Bargatze had a pretty good joke about the same premise:

https://youtu.be/QXy3uII-xn0

Best chance pretend to be a mute and blend in the best you can. Gonna be a bit hard to keep the glasses if you are dependent on them, maybe just become good at making glasses seems like a good trade especially for the time period I dont think glasses were really around for awhile I'll have to do some research