It isn't.
Yes, "self-diagnose" is hyphenated.
No, "self-interest" is typically not hyphenated.
Left-handed is a hyphenated compound.
No, the phrase "top of the line" is not hyphenated.
The word "self-confidence" is hyphenated.
It is not hyphenated.
No it's not hyphenated.
Motorcycle is not hyphenated
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
Yes it should be hyphenated.
No, "hardworking" is not hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
No. Well above is not hyphenated.
Yes it should be hyphenated.
The word desperate hyphenated
peace of mind is not hyphenated.
"Field" is not hyphenated.