Should I throw out 54 pairs of my underwear?

I have had my period since I was 12.5 and now I am 17 and have always had a heavy flow. My period ruins all of my clothes and pajamas, bed sheets, school uniforms, shorts, skirts, jeans, bed sheets, comforters and and most of all my underwear . If I throw my panties away I will barely have any left . I can never seem to keep any cute clothes. Help. I'm thinking about not buying anymore cute underwear until I hit menopause. Is their a solution to this?