Most Helpful Guy
It's completely normal to be feeling the way you are, especially after 4 years. Humans are really adaptable and we get used to someone being there. There are constant reminders and you find yourself pining for what was, it's natural. You're scared because you're in the unknown again and your brain is trying to hibernate by playing old movies lol Concentrate on yourself, things you enjoy, find new things, experiment with different hobbies, you'll meet like-minded people and find out a lot about yourself in the process. It will get better, but you have to stop eating the member-berries, you know?
Most Helpful Girl
Just think about all the reasons why you broke up and what he didn't give you and find someone who will. I know it's seems impossible now but it will get easier over time.