I want to go to the Lotte World.
It is so fun. / It is very fun.
Next weekend, I will go again.

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1.
Anna: i want to a lotteworld
Correct: I want to go to the Lotte World.
Explanation:
*Begin your sentence with a capital letter.
*Please indicate what you action you want to do in your sentence.
In your sentence, I put "go".
*Please make sure that specific names of people and places are capitalized.

2.
Anna: is so very fun
Correct: It is so fun. / It is very fun.
Explanation:
*Begin your sentence with a capital letter.
*Insert a subject in your sentence. What is very fun?
*Don't use so and very together because they mean the same thing.

3.
Anna: again next weekend go too
Correct: Next weekend, I will go again.
Explanation:
*Begin your sentence with a capital letter.
*Write the verb in the future tense "will go" to indicate that the action will happen in the future.

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Hello, Anna! Thank you for submitting your homework. Please read the following corrections and explanations carefully. If you have questions and clarifications, you can ask me in our class. Thank you!