Academic record
One of the most obvious consequences of leaving the university is that you will no longer be awarded with an qualification from the University of Brighton.
This won't be an issue if you are transferring onto a course at another University but if you have decided that study at university isn't suitable or appropriate for you, then it is advisable to ensure you get the best record or reference from the university.
Your course leader may be able to write you a reference which you can give to potential employers (or study providers should you come back into education) - however poor attendance or poor academic performance may be reflected in any reference you receive.
Therefore it is best to continue attending lectures and practical sessions until you are absolutely sure - that way you get the maximum credits for your work, and if you decide to stay you aren't behind. In addition, it is always preferable to finish the semester or year in order to gain maximum academic credit for the work you have done.
You may qualify for an intermediate award (academic qualification for your assessed work) - see the guideines in General Examination & Assessment Regulations (GEAR), Section C.
If you are nearing the end of your degree and are thinking of leaving, if you feel able to continue, it's generally better to do so. Even if you no longer want to take the degree subject further or are likely to get a lower classification that you would like - it is better to have gained something from your studies.