You would say,
douceur de vivre
I think you are sweet french
The French translation of "she is sweet" is "elle est douce."
Sweet sixteen is not an expression that translates into French. It is an English idiom.
Probably "la vie dorée" (the golden life), as there is no direct equivalent to the "sweet" life in French. "La vie en rose" (life in pink) means a happy life, not exactly the same as the sweet life.
sa sobrang sweet baka langgamin
The French translation of "sweet events" is événements douces"".
"Sweet lady" in French is translated as "douce dame."
Il est doux.
dessert on douceur
Simplement doux
comme c'est doux!
douce amie