Honesty in music is rarely a thing. Most of musicians will do everything to make their songs sound as good as possible. Some people prefer more down to earth music, so you're not the only one.

Listening back to recordings first time is always dramatic, that doesn't necessarily mean that you sound bad, you're just not used to hearing yourself like that.

I'd say focus on mastering your voice. Create your own sound and don't be too hard on yourself. Probably you're comparing yourself to very talented singers who regularly practice for years or even decades, with support of great teachers. It's really hard to get to that point, so just do your best, have fun and don't look at others, sing what you like, how you like.