Here are the appropriate words to fill in the blanks:

1. **cure**
2. **made**
3. **tried**
4. **terrified**
5. **accept**

So the completed text would read:

"I've tried nearly everything to (1) **cure** my insomnia, but nothing works for long. I started going to the gym, but it didn't help me sleep, it just (2) **made** me more exhausted. I have a fairly healthy diet and I don't drink coffee after 4 p.m. any more. I've (3) **tried** relaxation CDs, hypnosis, online support groups - I even bought a new bed. I don't want to start taking sleeping pills because I'm (4) **terrified** of becoming addicted to them. Perhaps it's time for me to (5) **accept** that insomnia is part of my..."