I'm hoping your lungs feel better today. This may be a silly suggestion from me, but would some fresh air help?

Sometimes when something new is coming (like classes) it can cause a little dread, but when it actually starts the dread disappears and one asks themselves "Why did I dread it so much?" I hope that is the case for you. I'm starting a French class in four days. I'm feeling like you do and trying to tell the above to myself.