Hey dear, I just kept on practicing. I do practice from the IELTS 12 book that IDP sent me and some random IELTS listening videos on youtube. I usually get 39-40 from the practices I've done. If I get wrong answer, I usually listen to the recording again to try to understand why I get it wrong. Additionally, read the questions properly and kinda guess what could be the answer. Then listen to understand the conversation not only to listen for answer as the sentence in the question won't be exactly the same as in listening. For example, in the answer option, it say Monday to Friday mornings, but in the recording, you will hear 9 a.m on weekdays.
In reading, personally, I'm good at skimming words. I read the questions first and just skim through the passage to find the answer and u might already know that in Reading, the answers are in order, so if you find the first answer in 1 paragraph, the Q.2 answer will be in the next paragraph...So you don't have skim the first one to find answer for Q.2 That's all I did, dear..