I have a rare disease and it is really dangerous. I need oxygen tanks supplying oxygen to me. It is like I rely on oxygen tanks more than water and food. I think that my path to cure takes wholehearted optimism from my friends and colleagues who have constantly been supporting me and I think that there is a ray of hope far away in the horizon for me.
Your job is to find the puzzle and give the answer.
BONUS: Also find how the puzzle is related to the title
HINT 1
I have added a tag but that by no means changes the answer.
HINT 2
I have added another tag but that by no means changes the answer.
HINT 3
Look for an operation and a number keeping in mind the tags
HINT 4
I am surprised why no one has been able to solve this puzzle. Now, after adding the acrostics tag, the answer must be obvious