Stay on the journey Pedro. That mask makes you feel helpless the first time. I wept a little and prayed the first time. I then learned to manage my breathing and closed my eyes. It actually became a good routine for thinking through life's issues. I was without issue for 34 of 35 treatments one time new meds gave me shortness of breath. The team on site was helpful and a change in meds fixed that. We are here for you.