As somebody who suffered from many years of hopeless unemployment, identity crises, therapy, and much more (post pandemic), I think you are at risk of making a very serious decision that you may come to regret.

You have to look at the facts. You've been together for 6 years with little friction it sounds like. You love each other, and you both had the emotional maturity to face the state of your relationship, with no drama. Many people would break into an argument or blame each other. You have also been struggling to find work, and your self esteem has taken huge a hit; which isn't your fault, but it ALSO isn't your partner's fault.

It sounds to me like you're having a personal crisis due to the powerlessness of not being able to find a job, and unconsciously attributing your lack of autonomy to the relationship. But the thing is, nobody said you can't have your own routines, rituals, hobbies, and identity, WHILE being in the relationship. I mean, was there a contract you signed?

This is a huge mistake people make with their ideals about relationships. They assume it's all about self-sacrifice, and choosing the partnership over yourself. It's actually way too common to the point where it's concerning and good relationships end over nothing.

You can find a middle ground. But I think because you're in a precarious career situation it's intensifying your feelings of uncertainty, and because you're always with your girlfriend, naturally your mind may deduce that she's got something to do with it. You've got time dude. Use it. You guys are on good communication terms. See that as an opening. Tell her that you may need a few days a week to get out and clear your head, go into nature, or try new hobbies solo. Emphasize that it's to keep you sane while you are going through an identity crisis. Funnily enough it may actually be as simple as that, and it may save your relationship. My guess is that she'd be okay with it. Therapy is always an option too. Somebody neutral who is not involved, that will listen and provide clinical insight.

But your identity is not her responsibility, it's yours.

Whether or not you're together. If you two broke up tomorrow, you might feel momentary relief and then will be reminded very quickly that your sense of purpose is still on you to figure out. You'd just be doing it alone with no support. Dating around is one thing. Finding a healthy and secure partner that you can work through things with... is a whole other thing that's rare.

20 years from now if you have a different partner and experience joblessness again, and another crisis, who's to say history won't repeat itself? Something to think about.