please help me

I have been dating my girlfriend for 1 year and 9 months. February 13 was our anniversary date (2 years in may!!)… but I am worried we wont make it. From the start of our relationship we were so inlove and so happy with eachother. We called eachother cute names and stuff. ever since my overthinking got to me, it really changed me. I dont mean to he a bad person. I dont mean to be a bad boyfriend. I was being mean to her, I told her f you because Of something that made me upset. And I kept suggesting “do you want to break up” But she kept denying of course. And I didnt want her to break up with me, I wanted it to make out bond stronger. But I messed up badly. Just on our anniversary she said she cant do this anymore. Shes been saying this for 2 days now. and its killing me, I begged her to stay and ill change and to believe in me. Its 2AM and im watching videos on how to change myself and taking notes. we decided to take a break for eachother. the thing is its 2 months. Im heartbroken. I always message her, I always talk to her I love her so much. and it hurts me so bad, I spent almost 3 hours crying. I even cried to my mom. I cannot lose her. I love her shes my soulmate. I know she loves me, because She 1. wouldnt have agreed to give me a chance and 2. even though we are not speaking right bow we are still sharing eachothers location to be safe. I love her so very much and Im scared that when the 2 months are up and we talk to eachother again she’ll say something like “ive been thinking and I dont want this anymore I realized that this n that” and so on and so forth. I prayed to God for us to work. and It seems to be working. we are still together, just taking a break, keep in mind we are doing long distance so it hurts even more. As you can see my main issue is my anger issues and my overthinking. I need comfort. I just want us to be okay. Im inlove with her shes my first everything. I cannot lose this bond with her, I love her.