Ugh! Beaten back by my own knowledge, not fair...help, help...!!!
lol. We've all felt the way you do. This helped me a lot:
It's a little/lot out of date, and tends to be for the semi-admin types, but it's still useful.
The easiest way is using something like webmin, which runs "securely" on your browser. More than anything, it has links to <help>, which prevents the "dumb" errors.