Hi and welcome to the GERD forum.
As for the grading system for GERD-
Grade I: redness and irritation of the esophagus
Grade II: some non-adjacent spots of erosion of esophageal cells
Grade III: increased and continuous patches of erosion
Grade IV: Barrett’s esophagus, a precancerous condition in which normal cells are replaced by abnormal ones
Having Grade II....u have some spots of errosion this is damage from the acids....
U r young to have this, and u can look to ur DIET and LIFESTYLE....avoid the foods that trigger more acid to be produced, spicy, greasy, acidic foods, carbonated bevs, caffeine, alcohol....keep a journal of what u eat and how u feel after some of us can have a reaction to foods on the "safe" list so be cautious....eat 4 to 5 smaller meals instead of 3 meals....do not lay down up to 3 or 4 hrs after eating, elevate the head of ur bed.
TAKE MEDS AS DIRECTED BY UR DR- many meds can help heal these areas damaged by the acid, but u have to modify ur diet and lifestyle and continue with that...
If u smoke u should quit.....if u r over weight u will want to lose some weight...eat healthy and exercise.
No one can say u will be cured of this completely, and how well u feel will depend on u....
For more tips on lifestyle changes and diet options see our Health Pages-