This is almost perfect!! Not really sure if it needs any correcting but some suggestions below:

Yesterday, my best friend came to my house to bring me some souvenirs. Unfortunately I wasn't at home as I was in church and so I couldn't see her. When I came back, my mom gave me the bag with the souvenirs they weren't a lot but I love them! The first thing I did was send her a message on Facebook saying thanks for her gift.

Here it is a pic if you want to see :)
There were candies and a bracelet.-

My best friend's gift

Yesterday, my best friend came to my house to bring me some souvenirs.  Unfortunately, I wasn't at home. I was in church and I couldn't see her. When I came back my mom gave me the bag with the souvenirs.   There weren't a lot but I loved them. The first thing I did was send her a message on Facebook to thank her for her gift.

Here it is a pic if you want to see :)
There were candies and a bracelet.-

[Well done!  Try to remember full stops and capital letters.]  

My best friend's gift

Yesterday, my best friend came to my house to bring give me some souvenir but unfortunately I wasn't at home I was in the church and I couldn't see her. When I came back, my mom gave me the bag with the souvenir, they weren't a lot but I loved them, the first thing I did was send her a message on facebook saying thanks for her your gift.

Here it is a pic if you want to see :)
There were candies and a bracelet.-