vaping

I’ve been vaping since I was 16, and I’m about to turn 21 so almost 5 years. At first I just did it because all of my friends did it, but then it became a crutch for “helping” my anxiety and depression. I’ve tried to quit many times, but the furthest I’ve gotten is a month into it and I cave. The past two weeks my throat/chest has had a really odd feeling that I’ve never had before. It feels exactly like when it’s freezing cold outside and you go for a run, that weird feeling you get in your throat and chest from the cold. It’s freaking me out and I’m trying to stop now, but has anyone had this happen? I’ve seen so many horror stories about vapes causing collapsed lungs and other lung conditions, so I’m scared I’ve already done too much damage. Please be kind, I realize how stupid I was to let it get this far.