Can someone regain a Beginners Mind when it has gone?

Shunryu Suzuki famously said in Zen Mind, Beginners Mind > In the beginner’s mind there are many possibilities, but in the > expert’s there are few But if one's beginners mind has gone is it possible to regain it. If so what can one do to get a beginner's mind back again. The motivation for asking this is that after a years practice I had a very strong feeling of my beginners mind leaving me. I felt very fresh, vibrant and curious about practice for about a year then one day I could literally feel that ebb away. From that point my practice was different - maybe not worse but definitely has a different quality to it. It feels more like work I guess. So I've always been curious to whether that initial state would ever come back and if there was anything I could do to encourage it.