I can fairly be called an amateur because I do what I do, in the original sense of the word - for love, because I love it. On the other hand, I think that those of us who make our living writing history can also be called true professionals.
More than anything, he wanted to return to the house with the same look of peace that he'd seen on Pastor Harris's face, but he trudged through the sand, he couldn't help feeling like an amateur, someone searching for God's truths like a child searching for seashells.
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."
The careful scholarship of the dedicated amateur mycophile R. Gordon Wasson reads like an exciting scientific detective story. Moreover, his willingness to pursue the quest through the wide range of linguistics, archeology, folklore, philology, ethnobotany, plant ecology, human physiology, and prehistory constitutes an object lesson to all holistic professional students of man.
During my early days as a sportsman and early career as a policeman, things were tight. In athletics I competed as an amateur and, although I might have received some expenses, very little came my way in earnings.
What novel - or what else in the world - can have the epic scope of a photograph album? May our Father in Heaven, the untiring amateur who each Sunday snaps us from above, at an unfortunate angle that makes for hideous foreshortening, and pastes our pictures, properly exposed or not, in his album, guide me safely through this album of mine...
Professionalism is environmental. Amateurism is anti environmental. Professionalism merges the individual into patterns of total environment. Amateurism seeks the development of the total awareness of the individual and the critical awareness of the ground rules of society. The amateur can afford to loose.