I just started my first proper job at 21 with another trainee. She is constantly trying to one up me about how she knows more or is better friends with the rest of the staff and how much previous experience she has. I've found in the past its always these people that you compare yourself to and feel inadequate and then they end up quitting soon after. I'm still in that phase of feeling inadequate and comparing myself. How do you deal with 'one uppers' in the workplace?