It is only the end of the first semester of your first year of the course. 2.2 grades are not terrible at this stage. As a pp says, you need more thorough feedback to see what changes to make in your submissions. If it is not forthcoming request a meeting with your assignment markers with advanced notification that you require more detailed feedback on how to raise future grades.
Does your university have study workshops; learning skills sessions on specific areas such as essay/report writing; support sessions with graduate teaching assistants/course leaders? All of these are really useful sources of information regarding how to raise your game.