Whether you are a first-time student studying for a degree or a mature student going back to university after working for a while, it is always worth doing whatever you can to improve your CV while studying. There are very good reasons for this, chief among which is that having work experience matters. When there are so many graduates and others going for every single job, you need to do what you can to stand out.
Plus, enhancing your CV now by developing your skills and getting some valuable experience in the world of work will stand you in good stead for the future - and you might even be able to apply the knowledge you've learnt studying in a practical setting, which will benefit your education, too.
While you are studying, it can be a very good idea to do some voluntary work. This is a good option for many students as there is a wide range of work choices available. For instance, you could become a charity fundraiser, developing your communication skills. Alternatively, you could spend time at an old people's home or a kids' club, or teach your native language as a foreign language - all occupations that will look great on your CV and develop your transferable skills.