Chinese name for my girl

This is the Chinese name I like ...

赖恺宁 lai4 kai3 ning2

恺 for happy
宁 for serenity

Why I like this name - Most of all, I want her to be happy in life. Serenity is important too, given my fiery temper so hopefully she can counter my stubborn streak with her serenity.

Hopefully my choice has the correct number of strokes, etc etc. Will ask one master to see if the name is suitable for her.

The characters should be not be too difficult to write too, since I already have problems trying to write my hubby's surname!