If you want to improve your English knowledge, and you have questions about specific aspects of English grammar, vocabulary, pronunciation, usage, etc., then English Language Learners (ELL) is the place to go.
BUT, it is off-topic to simply ask whether your sentence is correct, or ask to find errors, or ask to correct or improve your English writing. Questions like that will be closed. No site on the network accepts that kind of question.
For instance, you asked whether your sentence, "This solution apply my question" had good grammar. That's a request to find errors, so it's off-topic. A better question might be:
"This solution apply my question"
In that sentence, I'm unsure how to connect "apply" and "my question". Is it just "apply my question", or "apply with my question" or something else?
To be clear, the purpose of all questions on ELL is for you and others to learn English. If you're ready to work at learning English, and you can ask questions like the above (or better), it's a helpful place.
But if you just want your writing improved and you don't really want to spend the time to improve your English, then this network isn't the place. You probably want a private homework tutor.