I know this is technically seeking advice, but, to me, advice on the subject is considered an answer to the question. Therefore, I wouldn't consider this to be outside the bounds of this StackExchange. I am looking for an answer that would include advice of what I should strive for and why it is important.
Context
I am new to GIS. I started a job doing part-time work for a place that had just launched a GIS side project. That side project is rapidly evolving into something bigger and I am the sole person in charge of making it happen. I didn't go to school for this. I am self-taught and learning as I go to provide what is requested.
Question
How do I continue to be productive and proactive at work?
Since I have no prior experience, I do not have many fresh ideas that I can present to help grow and evolve this project. Where can I seek inspiration in order to propose new projects and train myself? The last thing I want is to be working here and have everyone ask "...What does he even do?". My job includes both gathering data in the field and presenting it via printed maps. I use the ESRI ArcGIS suite.