I'm always horrified when I hear my voice recorded. Then I listen to the same tapes a few years later and it's nowhere near as painful. Still not like the sound that I THINK I produce while singing (i suppose the voice resonates differently inside your head) but not as cringeworthy as it felt when I first heard it back.

Have you tried recording your voice multi-tracked, either in unison (where your tuning has to be really accurate) or in harmonies? If it sounds a bit 'thin' solo, it may well sound amazing in chorus with itself. (Certainly how it works for me - trouble is, it makes the solo bits sound even worse in comparison).

And, yes, GUEST, isn't recording an amazing tool for spotting and fixing mistakes? Amazing how you can sing a song for years and not notice you've always ended a particular phrase flat, and so on.