cool dude!!... if we analyze your score, only places you were lacking is
Listening: You are good at this module as you were able to get 7.5. Different between 8 band and 7.5 band could be just one wrong answer. So in the next attempt with a bit more focus, I think you can get 8 and above.
Writing: Your 6.5 score in the very first attempt is impressive. You can practice a bit more on your grammar and some strategies to improve IELTS writing band can give you band 7 easily. Try following IELTSLIZ and few others in youtube for tips.
Remember, I am stuck in IELTS since my last 4 attempts with shuffling 9,8 scores in reading and listening and 7.5 in speaking but I always got 6-6.5 in writing. This specific .5 band in writing is very tough. Once you get band 8 in listening, you'll be joining the majority who are waiting for 7 in writing.