I would say, don't hold back
I look at it as similar to an outer planet transit. You still HAVE the natal position, but you learn to 'do new things'. Moving from Aries to Taurus, perhaps you'll lern to 'apply' your fiery, independant and ambitious nature in very practical ways. Maybe you'll consolidate what you are personally capable of, through years of sustained effort. Maybe you'll be working on your self
your own personal qualities and skills. (Not that you couldn't have done these things before!!)
Yes, think of it as a new part of your toolkit. You're going to learn how to 'be' Taurean, to the extent that it suits you. Where is Taurus in your natal chart?
I moved from shy Cancer ascendant to bold Leo in 2000, my first year out of highschool. It certainly fit! People who meet me now laugh when I tell them that I can feel quite shy....but I know it's me (I just think of all the years BEFORE Leo came along in 2000
) I still 'feel' shy at times, but I've got a new emphasis on how I present to people. I can choose to show immediate warmth (leo) because I like being with people (leo) even if I am feeling hesitant (cancer). Still have the feelings, but more choice about how to act.