Welcome to the forums and thank you for joining us! It sounds like you have some great insight into your mental health and reaching out to a therapist so a big kudos to you because that's not easy to do.
This is a great question. I think it might be worth bringing this up to the counsellor too, as they might be able to suggest some different things since they know more about you.
Jaz asked a great question about your counsellor and I can +1 on the mindfulness too. Journalling could also be a great tool if that's something that interests you.
I will share a couple of extra resources, let me know what you think or if it's what you're after. :)
Mindspot Wellbeing Course. I know you said that you didn't score highly on anxiety or depression which is what this course is for, but I think there's some really good techniques in here about challenging some thoughts and beliefs. So this might help to interrupt those thoughts that make you defensive for example. It's also free https://www.mindspot.org.au/courses/well-being
Self Compassion by Kristin Neff. It's a great book on being kind to yourself. I know from my own experiences in bullying, it really knocks you around and your self-esteem, so having a little more compassion for yourself can help build your resilience.