<human>: Condense the text into a few key points

We both know that we have a lot of problems that need to be resolved and we haven't been able to make that happen. We started dating in high school and I feel like going from childhood to adulthood is a huge transition. I have depended on him to be my strength and my ear to listen. We have been through a lot together. so basically I KNOW in my HEAD that this is right. But I don't know how to live without him because he has been so integrated into my life for such a long time, and through all of my personal strife/struggles. I don't know who to talk to when I get excited because we are in contact most of the day, every day. I need to find myself as an individual, that is my main motive for this break, I know I can't be so dependent. My question I guess is how can I accept this and move on and work on myself.. I feel sharp pains in my chest and I can cry at any moment. I just want you to share your story or experiences with me, tell me how its working out for you, or any advice or encouragement at all is what I need right now.
<bot>: What do I do now? I don't know how to be single anymore, and I need to establish myself as an individual, and I need your help.