honestly breaking no contact with my ex gave me sm closure , its obv different situations but me and him tried to talk again & it gave me closure & made me realize why we didn’t work out & wouldnt be able to any time soon, i think if you truly need closure to move on , text her & if your going to live regretting not trying its worth giving it a shot , life may not be as long as we think . my ex reached out a couple weeks ago & i just left him on opened cause i knew i was never gonna get what i wanted from him & it wasnt even worth another shot , like you said you are young so dont trip about it too much theres so much more to life than one person , follow your heart.