Of course. A lack of free will doesn't prohibit us from changing. It's quite the opposite, actually. The fact that we DON'T have free will is what allows us to change. I mentioned before the understanding of 2+2=4. At some point in your life, your teacher explained that to you and you understood it and, since then, you have no way of not understanding that 2+2=4. If we had free will, aka the freedom to not be impacted by outside influences, you would be able to believe that 2+2=5, or really whatever you want it to equal.
Think about what it's like to not know something and the know it. Is there freedom in that? Are you free to not learn something that you have learned? Have you ever believed something and then had someone present information that was so convincing that your mind was changed on the spot? If we had free will, we would be free to not be convinced by the most convincing of arguments. You would just use your free will to continue believing whatever you wanted to believe, right?