[quote=@Burthstone]
<Snipped quote by Caits>

I need help with iambic meter.

I can't tell which syllables are stressed and which one aren't!
[/quote]

Well, I'll use a simple one. Remark, for example. Re is unstressed, where as mark is stressed.

Say the sentence out to yourself, it makes it easier. 

Such as but, Soft! You out more emphasis on soft then but, do you? Typically the word that has more emphasis is the stressed word/syllable. 

Do you want to provide me with an example of what you're having trouble with?