I spend two hours curling my hair, but it still doesn’t curl well.
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means scroll. But, you don't "to scroll." What do you do to scrolls, though? You roll them up, making this word "to roll" or "to roll up."
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: The thing you are rolling up is your ma (ま). She's going wild again, so you throw her into a blanket and roll her up to hold her down.