First of all congratulations to your McKinsey offer, I wish you best of luck in your career.
For candidates like you, who have already secured the offer with a leading consulting firm, I have designed my program "Get ready for the first 100 days " as well as long-term career planning. This program touches all the important aspects: the mindset, the skills, knowledge, networking and ,managing yourself as well, your bosses and clients - everything that is important in your successful career.
In fact, I'm sharing my knowledge of 6 years career experience in consulting, where I was able to land on the fast track promotion and to be promoted from consultant to a project manager just within 3 years, which is extremely fast.
Happy to share these insights with you, feel free to reach out directly to me.