If you’re overweight you can do something about that obviously.
You could try wearing glasses for the eye thing, no magnification.
You could try to grow a beard if that’s solving some problem, that’s a common solution actually for the chin thing you mention.
Also remember that character animates the person, and your voice, a voice can be very attractive, it’s a package, not simply one or two physical things. If you can get into situations where you can let your character shine through then things should be fine.
Lots of solutions to what you think is a problem. Have you ever seen one of those makeover programs! Amazing transformations just through hairstyle, clothes, a tan and some of the things I’ve mentioned.
But seriously, bear in mind the positive character traits you have due to your poor self image. Thank God for those I think.