Anxiety relapse

Hi,

I have been on anxiety medication for 3-4months now. My emotional outbursts and anxiety were well under control. Yesterday I had a bad relapse. I fought with my bf, got insecure, anxious & emotional. Today morning it felt like I was drunk last night and said things drunk. And now I can't stop crying thinking my entire hard work of these months was for nothing. Now I'm the same immature insecure person in my eyes and even in my boyfriend's.

How do you guys motivate yourself again ? How do you go through the relapse with all the sadness it comes with ?