Use a voice recorder when you are speaking so that you can go back and listen. This will help you notice areas that need improvement. In terms of speaking too fast, practice makes perfect! Try to do more listening tasks to help with pacing.

Speak slowly? Practice in a way that you correct things when you go wrong. If you can tell, yourself, then practice any way that works. If you cannot tell when you go wrong in every instance, practice talking with a native speaker, tutor or teacher. I'm afraid practicing until it is just natural for you to follow grammar rules is the best way. . Particularly, pick up structures, phrases and clauses that work for you that you can reuse either directly or reuse the structures with new words. . Prepare: while the topics change, there are generic things that you can prepare that you can use in many diffrerent topics. Descriptive language that you can work into a story, adapted for the topic given. That is; prepare pieces that you can string together and adapt.

Hi! I think the best way to improve if to practice speaking with a language partner or a native speaker! If you would like, I can arrange lessons to help you improve your fluidity and confidence while speaking. Hope that helps! If you have more questions or would like to work with me on English tutoring, take a look at my profile and feel free to book a lesson!

It's all right :D Just talk more, practice more. 加油！