Goal IELTS 7.0

My actual band is 6.0-6.5 on mocks, but my goal is 7.0 to move to another school. I have 37 days until my exam. So is it possible get it? I also heard that test in April is harder that other ones. And on reading I get sometimes 5 and sometimes 8 idk how is it even possible. Any tips plss!!! I will read everything