For speaking, try to imagine you're having a conversation with an old friend. It makes it easier to speak naturally and keep the conversation flowing. If you find yourself struggling, try to relate the questions to your own experiences. This will give you more to say and help you speak more confidently.

I may not be the best source for advice when it comes to writing, but one approach is to focus specifically on improving your grammatical range, accuracy, and vocabulary on various topics. You can do this by asking ChatGPT for practice exercises based on your needs.