That's cos you have not done anything like this with a therapist. It's new and scary. If you have never been allowed to explore your emotions before, then it's hard to talk. I've 20 years of all this.
I also have the ongoing help of being in a 12 step program of which there are many types. The most well-known is Alcoholics Anonymous. There are many types of 12-step programs.
You can Google them all for the U.K meetings in person and on Zoom.
These give ongoing help. They are
1/ A.A
2/ Al-Anon (Families of an alcoholic/addict - drinking or not, alive or not and together or not.
3/ Al-Ateen is the same as Al-Anon, but for young people
4/ Adult children of Alcoholic and/or dysfunctional childhoods
5/ Those are the most common
66 Others are S A for sex addiction, W A work addiction, ShA, shopping addiction, N.A for narcotics, C.A, H.A, etc, for other drugs and GA for gamblers
I don't know who your therapist is. However, if you're not involved with Women's Aid, Google them as they are a great resource
I hope one or more of these are helpful to you and others. Knowing what is out their is useful