Will I eventually lose my eyesight or develop kidney disease as a result of having type 1?

Not necessarily. Retinal and kidney damage are not totally preventable, however, progression thereof is at least minimized with aggressive management of diabetes.
Eye and Type 1 DM. Good control is the key to protecting your vision and kidneys. The hbac1 strongly relates to this protection and with the assistance of your diabetic doc, you need to keep this number low (at least under 7.0 or more). There is effective treatment if diabetic change occurs in the eye including lasers and certain injectable agents. If your vision drops, see your ophthalmologist.