Yes. Attending meetings with yourAcademic Mentor are good opportunities to reflect on your progress generally, including all your successes; they can also be helpful for identifying other opportunities that you might want to take up alongside your studies so that you get the most out of your time at LSE.
Remember, too, that you may face some difficulties later on and it’s important to build a relationship with your Mentor so that you feel comfortable approaching them, should the need arise.