My manager is taking sabbatical leave so I've been promoted to his position until he returns in a year.

I've been working really hard in my job and senior management know I want to progress within the company so this is a great opportunity for me.

I told my mum and the first thing she said was I'm guessing they didn't have anyone else then.

Now I'm thinking is this true? Was I just the pick of a bad bunch it would it be too costly to recruit and train someone new?

I started on a high and now I feel awful about myself as i now start to think they didn't have anyone else