Need help with anxiety please

Good afternoon everyone! We got a puppy back in May. Two weeks after bringing her home I had a panic attack that wouldn't go away. My anxiety kept getting worse and was even bad the night leading up to getting her. Honestly, if I had known I'd feel this way I wouldn't have gotten her. I asked my parents if they could keep her until I figured out what was going on with me. Fast forward to now, she still is there primarily. We have her over night and she comes over every day or every other day. The anxiety started to go down slightly but shot back up recently. I don't know what to do because in February she's coming here full-time time and I'm terrified! I shouldn't feel this way, I love her with all my heart and I will never give up on her. But, my question is, is this normal? Will this last forever? Is she really the best dog for us as a family? I'm just so over these emotions and anxiety. Please help!!!