May Allah help you through this
The Law of Difficulty applies when it becomes unbearable for you to always maintain your purity. So here’s what I recommend:
1- Keep a set of pure clothes for prayer. Pray only in those clothes.
2- Before you pray just wash your hands and arms and face and feet and then dry your feet quickly with paper towels.
That’s it. Don’t worry about anything else, such as your hair or other body parts being najes. Just assume them to be pure