Hi, I (17f) been dealing with anxiety for about two years now (it started during quarantine) because of it I could go to school anymore, the sole tought of it made me crumble inside, I feel a severe shortness of breath wich is why I'm scared of exercising, my parents just tell me to go for a walk to clear my mind and start exercising, but when I do my heart starts beating faster and I'm scared of just passing out on the street, what's making it worse its that as I'm getting closer to turning 18 I fear everyone would just abandon me, the only thing that makes me feel better is talking to a friend who also has anxiety and depression, I'm getting tired  of people just calling me lazy and tha I should just start working to get my mind of feeling anxious 
Any tips on how I could calm down when I'm feeling anxious would really help 
Writing this already helped me feel better