Wikipedia summary:

If you can’t sleep, that sucks but not the end of the world. Not even thattt harmful.

Paradoxical Intention is a treatment method which involves telling the patient to do the exact opposite of what they have been doing in bed: They should stay awake and avoid falling asleep.[3] The goal of this method is to decrease performance anxiety which may inhibit sleep onset.[3][4] Paradoxal Intention has been shown to be an effective treatment for sleep initiation insomnia but might not be effective for sleep maintenance or mixed insomnia

Article talks about sleep hygiene

More effective than pills (ex zopiclone). Chronic sleeping pill usage can cause tolerance.

You can also try https://en.m.wikipedia.org/wiki/Acceptance_and_commitment_therapy instead of cbti

Biofeedback has been shown to be an effective treatment for insomnia

Computer based therapy is as effective as seeing a human therapist