That is a big danger, losing your inspiration. When I work in film and television I try to do each take a little differently. I never want to do the same thing twice, because then you're not being spontaneous, you're just recreating something. ↗
I don't understand the actor who plays the same role from movie to movie. Maybe it's because I worked on long-running television when I was in my teens, and so the idea of playing the same role just bores me intensely. I'd rather not do it at all. ↗