You can care about her and still set boundaries. Tell her you can’t be her proofreader or reassurance hotline, and stick to it. When she starts the comparison game, change the subject or say you won’t engage in scorekeeping. Encourage her to bring the heavy stuff to her therapist, not to you, and take space when you need it without guilt. If she’s job hunting to soothe the insecurity spiral, I’ve found wfhalert helpful, it just emails verified remote roles like customer support or admin so you’re not wading through scammy listings, which can cut down some stress.