Hello!

Hello everyone.
My name is Saori. I love animals.
I have a dog (shiba-inu)

I have started to study/studying English from on/this September :D

You can use:

-I have been studying English since September.

-I Started studying English this past September

my poor English... (My English is poor)

I will try my best! √

よろしくお願いします。

------------------

Hi Saori! Keep it up, good luck with your studying. :)

Hello!

Hello everyone.
My name is saori. I love animals.
I have a dog (shiba-inu)

I have started to study English from September :D
my  poor English...

I will try my best!

よろしくお願いします。

構成

have,has
＋ｐ.ｐ.

定義：もう発生したことや事件は現在に対しての影響を表す
時間状語：（時間を表すことです）
recently, lately, since…for…,in the past few years, etc.
基本の枠：
have/has + done
否定を表すこと：
have/has + not +done.
疑問の枠：
have/hasを前へ　

Hello!

Hello everyone.
My name is Saori. I love animals and have/keep a Shiba-Inu dog. (. I have a dog (shiba-inu))

I have started to study English as from September: I am sorry for (D)
my poor English...

I will try my best!

よろしくお願いします。

Very good, Saori. I have checked and found these are very cute dogs of the Spitz breed.

Hello!

Hello everyone.
My name is Saori. I love animals.
I have a dog (shiba-inu).

I have started to study been studying English from since September. :D
my poor English...

I will try my best!

よろしくお願いします。

Great job, Saori!

Notes:

Remember, names are always capitalized, so Saori instead of saori.

You could also have said, "I started to study English in September"

Isaiah

By the way, is shiba-inu the word for dog? Or is that your dog's name? :)