Well, from what you posted, you have the following correct:
I_ * _O_ * _A_ * R_ _D * _ _ _ _ * _ _ _ _ * _ _ _ * HA_E * _SS_ES * _ _ _ _ * _I_E * ME * HOORAH
So you know what A D E H I M O R S are
First word: You got the second character confused with A for some reason.
Second word: First character is not an M and the third character is not an N. Just because they look like that letter doesn't always mean it is.
Third word:
Fourth word: The second character is tricky as it represents 2 letters.
Fifth word: The first character once again represents 2 letters although different ones as the symbol is different. Since you already know S though, I'm confused why you don't have an S in there yet.
Sixth word: This word has the same 2 letter symbol as the last word does. You also already know E so why that's missing I don't know.
Seventh word: Same word as the second word.
Eighth word: You're close. Just missing the third character.
Ninth word: Again, the fourth character is not an N.
Tenth word: You already know S so that should be in there.
Eleventh word:
Twelfth word: Yep.
Thirteenth word: Yep.
So this is what you should have so far:
I_ * _O_ * _A_ * R_ _D * _ _ _S * _ _E_ * _O_ * HA_E * _SS_ES * _ _S_ * _I_E * ME * HOORAH
Also the character that looks like l mean either of 2 different characters so it may be an A or it may be a B (not those 2 but this is just an example although the letters are next to each other on the alphabet).
Also the same goes for the character you kept thinking was a N.