Timing and Stress
This conlang doesn't know phonemic stress that can change the meaning of a word but is ruled by syllable length. It is
mora-timed like Japanese. To make a complex topic very simple, a
mora is the time-unit in a syllable, a beat.
Short Vowels are monomoraic, they last only one beat. Long vowels, diphtongs and silbic consonants are bimoraic (two beats). The beginning consonant(s) of a syllable (onset) is/are not counted. The final consonant (coda) is one beat.
So there can be light syllables (1 mora/beat), heavy syllables (2 morae/beats) or superheavy syllables (3 morae/beats). If you need to place stress put it on the superheavy/heavy syllables.
Foreign speaker should just remember that a long vowel or a diphtong is always twice as long as a short one, they must not swallow any syllables as English is prone to and they will do fine.