If you leave it all to the last minute you will fail - you MUST be disciplined and responsible in your approach. The next consideration is work and how best to approach it. This may seem difficult at first but you will gain understanding and self-confidence as you learn. There is no uniformity of study patterns. Some students require peace and quiet whilst others prefer to work in groups or need background music to aid concentration.
Some people work best in the morning, others in the afternoon or at night.
Talk to your fellow students and find out how they study. Study skills take time to acquire. Be patient, motivated and allow your self-confidence to grow. Adopt a varied approach to the different subjects you are studying. Be prepared to raise any doubts with your fellow students or your personal tutor.