Trying to heal

I'm 19 and recently my boyfriend broke up with me and I've been struggling so much with my mental health I was told I have anxiety and depression. He broke up with me because he started to see me in a negative way a person full of pride and huge ego, I myself knew I had alot of pride and wanted and was willing to change that bad aspect of myself for him but he lost patience with me and now he says I've failed us that I'm the reason this relationship ended. I truly loved this person I had basically imagined my whole future with him and now that he's gone I feel lost and unmotivated. I myself know I loved him and showed him I did too but he's making me believe that I wasnt enough and that im a bad/ugly person that doesnt deserve love. I wake up every morning with a heavy chest and spend almost the whole day anxious ever since he broke up with me I haven't been doing well mentally, physically, and emotionally I hate feeling this way and want to move on but don't know how because he's always on my mind and when I try to think if other things he's always right behind my thoughts. I'm not sure what to do im considering therapy but in the meantime I need support because I feel alone and have no one to talk to.