I second what Steve said.

Don’t be too harsh on yourself. Lock this experience in the memory bank so that next time it occurs you can think to yourself “I’ve seen this BS before, I’m not falling for it.”

The only way to learn how to walk is to fall over a few times. You’re doing great 👍

In terms of getting sucked into a discussion about your changes being temporary, you need to have some standard lines in your head that you’ve practiced and have ready to go.

Next time he says he thinks your changes are temporary, how about these:

a) “Hahahaha… You can believe it or not, I couldn’t give two sh**s what you think. My changes are for me 🤷‍♂️”
b) “Don’t worry, it won’t be you that benefits from the new and improved me 😉”
c) “Omg yawn-fest, this conversation is so boring, I’ve got better things to do. I’m going out!”