Loss of friends bc of mental health struggles

While I was undergoing an anxiety attack before a class in high school because my depression and anxiety was getting too much to bear, a classmate (and friend) I had back then asked me what was wrong. I said my “mental problems” got out of hand. I didn’t know then that what I was referring to were mental HEALTH problems (i.e., the depression and anxiety I had briefly in high school). I deeply regretted it, and the most I said to that friend the next day was “I’m sorry.” But the reason for the regret was I didn’t tell him what I was sorry for, and that I failed to clarify what I meant to say. I lost several friends after that, and I feel like my life hasn’t been the same since. This is because I dealt with occasional bullying and rudeness during my freshman year of college, as well as difficulty making friends as an adult. Although I just wanted to write this to get it off my chest, any advice would be appreciated.