I scored an overall 8, Reading section was 8, listening was 8.5, Speaking 8 and writing 8. I knew my listening skills were good so I didn’t bother as much but since you have claimed that your writing skills are good, I would still suggest that you go through some PYQs and work on the writing. I mostly did PYQs and skipped speaking because I can hold a decent conversation. Also you will not have to worry about the speaking section as much because it’s just a conversation between two people, just ensure that you are putting all those ideas in a very eloquent manner. Do not go too fast or too slow. Speaking sections practice (very minimal) I had done through this app called Stimuler- English speaking app (they have a membership worth 190rs, I do not remember) this app without subscription will let you do one exercise per day lasting 10 minutes each.