If this is something you'd truly like to work on, not out of a sense of guilt but because you would enjoy occasionally reciprocating, there are a wealth of resources out there for the enthusiastic amateur (you are far from the only would-be blow-jobber whose spirit is willing but gag reflex is weak). You have more options than "no blow jobs, ever" and "regular whole-hog sessions to completion that result in vomiting."
Mallory OrtbergTenancy laws can be so complicated; I want to make sure OP is protected as much as possible.
Mallory OrtbergAddicts sometimes have a penchant for becoming the center of attention at other people's celebrations.
Mallory OrtbergIf someone you know is diagnosed with cancer, give them a call or send them a letter to tell them how sorry you are and to let them know how much you care.
Mallory Ortberg