Hello Lanxt: I see this is still just your second post here on PC. So it's not too late for me to say... welcome to PsychCentra!

I hope you find PC to be of benefit.
I'm not a mental health professional.

So I'm not able to offer a definitive answer to your question.

But personally this GAD diagnosis seems questionable to me.

You mentioned you've had 3 therapy sessions so far. It seems to me this is very fast to be able to give a definitive diagnosis. But then I have to admit I tend to be skeptical of the whole therapy process myself. It's what's available & lots of people need it. But my personal opinion is a lot of what passes for therapy has more to do with the therapist's fiscal solvency than it does with psychic healing, so to speak.
My personal experience suggests to me that mental health providers (at least the ones I've seen in the past) have a tendency to go for the easy diagnosis. Depression & GAD are easy labels to slap on a new client... or someone they don't really care to bother much with.

If it was me & I had seen a therapist 3 times, & she was
insisting my diagnosis was GAD, I'd be starting to think seriously about seeing someone else. But then that's just me. As I wrote above... I'm skeptical. Perhaps other members, here on PC, will have some different perspectives to offer.