Question

How can i improve this or is it fine as is?

you are amazing.
whether you know it or not.
i love you so much.

Answer 1

get rid of the two periods

Step-by-step explanation:

you are amazing, whether you know it or not, i love so much.

Answer 2

First I would suggest Combining the sentences "you are amazing" and "whether you know it or not" with a comma like so

you are amazing,

whether you know it or not.

Then I would suggest that you capitalize the first letter of the first word of each sentence like so

You are amazing,

whether you know it or not.

I love you so much.

Hope this helped!

~Just a girl in love with Shawn Mendes