Does change worry you? If so, it doesn't mean you're weak. It means you're human. I know this because as a psychiatrist my phone rings when people are coping with change: when they're in between careers, jobs, even husbands or wives. During these times, I've noticed one constant: the "in-betweeners" tend to focus on the negative aspects of transition. It's easy to overlook or discount any potentially positive aspect of change.
Learning how to reframe these in-between moments and see them as inflection points in life that come with challenges but also opportunity is how happy people successfully navigate transitions. It's all about resilience.