Hola Victor,

Here is a correction for your text. 

A great experience

I think that I have am very lucky. I have my family, my friends, and they are always there to help me. I do all that I can to help them always help them in all that I can. 
My family is very important for me. Two years ago my niece was born my niece; she is beautiful and I love her, she always is laughing and she is very loving.
For my, it's the great experience of my life. I had bad experiences in the past and now I enjoy with the good things that the life teaches me.