Help me to see my sister laugh again

Today it is about something private. I find it very difficult because I am a person who likes to solve everything myself.
But in this case I am running out of time.

It's about my beloved sister.
If you have few minutes then please read my story.
The first section is written in German the second in English.

GoFundMe 

Thanks from the bottom of my heart.

Hugs and kisses Tara.