Emotional aftermath following breast cancer treatment

While I was diagnosed in Dec. 2019, chemo, cancer surgery, and four more surgeries took place over the next 2 1/2 years (one of which was a second cancer surgery). I'm 6 weeks out from my last surgery, feeling somewhat normal physically, but wading through the emotional aftermath. "What just happened to me?" I told my husband that I've spent the past 2 1/2 years trying to stay alive - and I'm exhausted. Exaggerated emotions with up-and-down mood swings. . . I find myself yearning for that sense of emotional equilibrium I had before this all began. I'm doing my best to give myself time for this part of the healing - but I find myself weary. Family and friends look at me like I'm fine now, and the trauma has passed - but the truth is, I am not fine on the inside. It's as if my body is trying to reboot emotionally, and its short-circuiting a bit. I am so goal-oriented. . . if I just had that "magic" date of when everything would be normal again, I could focus on that; but it doesn't work that way. I have to be patient with this portion of the healing - and I'm finding that hard. What are others' experiences with this? How long does it take for your emotions to settle from the trauma of breast cancer?