My ptsd

Hi! I been diagnosed with severe ptsd since I was 8. For 10 years after that I was court ordered to go to counseling. I never was one that opened up about what was going though my mind unless you asked. Theres times even though less frequently now where until I get the story out, its like im stuck in the past. All the emotions, all the pain, the memories. Is like one big movie that wont stop repeating. I've learned over the years how to keep living my daily life when I get that away. When i was in school you could tell because of my grades dropping and I wasnt able to focus on school work. After about 8 years of living with diagnosed ptsd. I  learned most of my ptsd was on a schedule.  It wasnt like every 3 weeks. it was more early September and mid  January of every year kinda thing. I also had to learn ways when it got really bad for me to keep going or bring me at least more able to focus in the real world. Most people im around dont understand how to deal with or handle ptsd. And with me not one to open up. All they can describe me during the time is someone who goes into a depressed state. About 6 years ago I was hanging out with some friends when I felt the ptsd coming on. I stupidly ingored it and kept going on like nothing happened. We all eneded up going to a movie theater to watch Water Horse. I ended up getting so bad all I could do was sit in a ball against a wall with my hoodie covering me. Even though for me it felt forever. I have some great friends. One noticed almost immediately and sat down by me to keep an eye on me. Even though I wasnt fully aware of what was going on around me I could hear the occasional "is everything okay?". I dont know how my friend knew but eneded up getting a cup of ice from the concession and managed to get to the back of my neck to rub ice on it. Oddly it started helping. Now even to this day anything cold on the back of my neck relaxes me. I learned even though its hard for me to relax and when I do its not for long. That knowing things that at least calms you down a little is a big key to keep living with ptsd. Because of everything that has happened. I dont handle change well and I get overly attached to people (even if I just meet them).