How much therapy have you actually had and what type? And how hard did you work at it?
Because what I’m seeing both from the fact that you keep posting the same thing on here, and the thought processes you describe, you don’t take responsibility for your anxiety being something that is your responsibility to deal with. You say that if your workplace doesn’t mitigate your anxieties by doing things, you move jobs. You are getting annoyed with your new girlfriend because you think she’s not considering your need to think several years ahead, and your desire to have children, live abroad, get a dog etc. She’s messing with your planned schedule .
But, bluntly, these things are not her problem. They’re yours. She’s responsible for her own emotional welfare, and for forging the kind of life she wants. You’re responsible for your own. She’s able to deal with uncertainty. You aren’t.
You cannot live a life that involves other people without uncertainty. It would probably be possible to evolve a work life that minimised uncertainty, though even then there will be changes of colleagues, the chance of redundancy etc. But having friends, being in a romantic relationship, having children — these all involve uncertainty. It’s built into their DNA. This woman may not want to keep seeing you in another month, or a year. She may decide she doesn’t want children at all. Or a dog. Or to live in the same overseas place.
In the early stages of a relationship, everything is uncertain. You barely know one another. And already, at the stage where most people are still discovering the other person’s favourite ice cream flavour, you’re fretting about years ahead. She might dump you tomorrow, OP! I’d dump someone who was posting repeated, fractious internet threads about how my age was going to mean he had to skip his planned life stages, and who kept telling me he was nervous about having children with me because he would have to do it sooner than planned.
You’re not in the right headspace for a relationship, and you’re certainly not in the right headspace for the colossal uncertainties of parenthood. Even conceiving a baby can be a hugely trying and long process of monthly hope and uncertainty, followed by disappointment.
Do yourself a favour and ho back to therapy.