Do you want this statement be translated to Tagalog? :P Don't worry = Huwag kang mag-alala or Huwag ka nang mag-alala It doesn't matter (to me) = Hindi iyon mahalaga (sa akin) You can either say "Huwag kang mag-alala, hindi iyon mahalaga sa akin." I hope my answer confirmed the above answer. :)

i suppose you wanted it to be translated in filipino, closest translation: "Dont worry about it, it isnt that much/ its nothing" .......wag mong alalahanin, bale wala lang iyon "Dont you worry, it isnt that much/ its nothing" .......wag kang magalala, wala lang iyon related expressions: "Just let it" .......hayaan mo lang "dont mind it","ignore it" .......wag mo ng pansinin "dont think about it" .......wag mo ng isipin iyon "dont take it serious" .......wag mong dibdibin .......wag mong seryosohin "it is not that important/ relevant" .......hindi naman iyon mahalaga "it is just a small thing" .......maliit na bagay lang iyon