Please recommend a bangs straightener.

I'm so stressed out these days because of my wavy hair.

there is:(

I don't know why this hair grows so fast. As soon as I cut it, it grows back quickly and gets incredibly crooked.

My hair is so frizzy these days, maybe because of the high humidity.

Even if I straighten it with a straightener in the morning, it gets curly again quickly.

I think I need to carry a hair straightener with me.

Please recommend a lightweight product with good value for money.