I'm a second year nursing student and I'm terrified of catching a chronic or deadly disease
Oh wow, why are you terrified? Are you cautious about disease?
Diseases are prevalent and it seems so common to catch them.
It is ok to be cautious as a nursing student. If you are cautious, you will better protect you and your patients.
I don't want to get sick. I want to save lives, not be a drain on the world.
I really commend what you are trying to do, and it's perfectly normal to be afraid like that. You are so courageous, and I'm sure everyone you treat will be extremely thankful! I wish you luck, health, and safety.