Translation: (Note, I made some assumptions about missing punctuation)
If only you knew how how much I love you. If you knew that you are my everything. Maybe, then you would know exactly how much you mean to me. I love you.
combien . . . ?
It means "How tall are you?".
182 est divisible en combien ?
combien font deux et deux (use "font" because there are several figures to be added) means 'how much are two plus two'
combien d'euro (im 13 and can speak perfect french)
how much is 'combien' in French. Depending on what you have after we say combien? or combien de... How much money? Combien d'argent?
combien est-ce / combien ça coûte / combien ça vaut quel est son prix /
C'est combien or ça fait combien
"Combien de fromages ?" : How many cheeses ?
combien ca coute
Ca coute combien ? means How much is it?
combien means how much / how many in French.
combien vaut cet article, combien coûte cet article.
Ca coute combien ? you are deciding whether or not to buy it. Ca fait combien ? you've bought more than one item, and want to know the total.
combien
Combien?
Combien d'oeufs a le frelon? How many eggs does a hornet produce?