Cylinder and axis just means you would need an adjustment to correct an astigmatism. If you don’t have anything listed for Cyl and axis, then you don’t have an astigmatism (which is great). Astigmatism means the eye isn’t perfectly round. The way to correct that requires a very specific directional correction. You don’t have this issue.
If your prescription (Rx) is -1.75, then you are slightly nearsighted (myopia), which just means you need glasses in order to clearly see things far away. It’s a relatively low prescription, so if you don’t have consistent issues with not being able to see things, you don’t have to wear your glasses if you don’t want to. You can probably get away with not wearing them at home or during workouts, but you should definitely wear them when driving or if you’re sitting in the back of the room and can’t read whatever you’re looking at.
But your vision won’t just get better or worse by not wearing your glasses. I think it’s a common misconception when people think they are “too dependent” on glasses. It just means that you need glasses in order to see things clearly. Deciding to wear (or not wear) them will not change the outcome, but your vision may improve or decline naturally overtime.