Unfortunately, it's not possible to straighten your hair with hair ties alone. Hair ties are used to secure your hair in place, but they do not have any heat or styling properties that would allow you to straighten your hair. If you want to straighten your hair, you will need to use a heat styling tool such as a flat iron or a blow dryer with a round brush.

Here are the basic steps to straighten your hair with a flat iron:

  1. Wash your hair: Start by washing your hair with a moisturizing shampoo and conditioner. This will help to remove any buildup or product residue from your hair.

  2. Apply a heat protectant: Before using a flat iron, it's important to apply a heat protectant to your hair. This will help to minimize heat damage and keep your hair healthy.

  3. Blow-dry your hair: Use a blow dryer with a nozzle attachment to dry your hair. Direct the airflow downward, and use a round brush to help smooth your hair as you dry it.

  4. Straighten your hair: Use a flat iron to straighten your hair in small sections. Take a small section of hair, and clamp the flat iron down on it near the roots. Slowly slide the flat iron down the length of your hair, repeating as necessary until your hair is straight. Work in small sections to avoid damage to your hair.

Remember to always use a heat protectant before using any heat styling tools and avoid excessive heat exposure to minimize damage to your hair.