by Erica Santiago for HubSpot I remember my first day at HubSpot. I was so nervous and had a million concerns swimming around in my head. Will I adapt to my new job? How long will it take for me to get the hang of things? Can I manage the workload and maintain a good rapport with my coworkers? Fortunately, my outstanding manager at the time prepared a comprehensive checklist to be completed over a few months, and it helped me slowly but steadily adapt to HubSpot. Fast forward a few years, and I'm a rockstar at my job. The…