Hopefully she'll understand & stay professional. You sound like you've made up your mind, you need a different T. I hope she won't try to talk you back into it, like you're just feeling this way cuz we're getting to core issues type of speech. Even if that were the case, it's no good trying to face some deep issues when you're not comfortable with the person. Stand your ground , move on. It's nice you care about her feelings, but this is your important life health stuff, needs to happen with the right T.