I need some ideas for cosplay!!

That depends on your look. If 당신 don't wear a peruke and a bought costume then 당신 should dress like somebody with the same hair color as you. I recommend Nico Robin from film Z for black hair. Nami in her dress 셔츠 water 7 outfit for red hair and any outfit from Lucy Heartfilia for blonde hair. Those are easy to make even without having to buy a cosplay.

Anyone with your hair color, 또는 if 당신 have a lighter hair color, 당신 can dye it to the color of any 아니메 character with colored hair (Examples: Fairytail; Natsu, Jellal, 또는 Juvia. Ouran High School Host Club; One of the twin's hair when they had their fake fight) 당신 could get a wig too, if 당신 want. For the body , it doesn't really matter if 당신 are skinny 또는 if 당신 have big muscles. That's just how 아니메 characters are made. Boys are muscular, girls are skinny, but that doesn't matter. For skin tone, 당신 can wear face paint, 또는 wear clothes the color of the skin of the character. I hope this helps!