It is very easy to become stuck in art.
Stuck on a color, style, subject matter, medium, process, brand....or whatever else one might get stuck on. We (artists) do tend to be a stubborn lot. Though not wanting to give up on something can be a very admirable trait, it can also cause one to stop growing as an artist. Doing what we've always done or using what we've always used does not allow us the opportunity to grow through experiencing new things. The act of trying something new can not only challenge us, but can be a source of new inspiration. It isn't that we abandon or forget the hows, whats, and whys of our past creative pursuits, but that we are willing to move forward with great expectation.
Forget the former things; do not dwell on the past.
See, I am doing a new thing!
Now it springs up; do you not perceive it?
I am making a way in the wilderness
and streams in the wasteland.
It is very easy as believers to become stuck in the past. It might be our past mistakes. There are many that allow who they were to keep them from becoming who they are meant to be. Others might become stuck on past miracles/victories/strengths. Though it is good to remember what God has done for us, we must not "live" there. It is like the high school athlete that can't see past their "glory days" to see the good before them in the present. God desires to do a "new thing" in and through our lives. Living in the past and expecting things to be as they have always been prevents us from growing. A "new thing" allows us to trust God in new ways. This trust/faith helps us to develop a deeper relationship with God. So the Lord may call you to try something new....because he wants to do a new thing in you!