Junior Year: Panic Attack

I don't exactly know if this was first panic attack but this is the kinda worst one and the only one I talked to my therapist about. It was when I still lived with my mom and only visited my dads like everyother weekend. I was at his house and they wanted to go out for Pizza Hut so we all got in the car and then went inside to eat. My dads girlfriend was on her phone and my dad was asking who she was texting. His girlfriend was really telling him who she was talking to or why she was talking to him so my dad got upset and tried to take her phone out of her hands. They then started to argue and yell in the store because she was aparty talking about my dad to a guy. I then started to get really nervous and my anxiety started to get bad. His girlfriend then took her phone back and either walked home or had her son pick her up. My dad then got our order to go and they said we had like a couple minute wait and we went back to back to his house. Me and my brother sat in the living room and he went in her room with her and closed the door and they started arguing. I then started to panic and felt like I couldn't breath and started crying and texted my mom to pick us up and that I really wanted to go home. She then called me but its like I couldn't form any words and me not speaking kinda concernedher which causedme to cry and panic more. But thankfully my mom and u have a good relationship so she knew how to calm me down. She was at work but she stepped out for a second and kinda helped me take deep breaths and calm down until I could speak. I explained what had happened and told her we were back at his house. She then asked where dad was so I told her in the bedroom with his girlfriend so she told me to take more deep breaths and to try and stop crying as she called him. I could hear the conversation between them. My mom asked what was happening and asked if everyone was okay. When they said yes my mom told them to try to calm down and that I was crying in the other room. She then told my dad to take me home and have them handle their business when we weren't their. So his girlfriend came in the living room apologized to me and went back in her room. My dad took back to pizza hut got our food and took us home and the whole ride home i had my earbuds in and when he dropped us off that day i just got out the car and didn't look back.

I feel like i had the panic attack was because when I was younger him and my mom would argue and yell and occasionally it would get kinda physical. Then when they got divorced they stopped arguing and fighting and obviously when my dad moved out it stopped. So it hadn't happened for so long that when it just happened out of nowhere it kinda triggered something for me which caused the panic attack.