I have been prescribed anti anxiety medications such as clonazepam for about 12 years i want to get off how?

Very slowly: I would recommend a supervised taper over 6-12 months depending on your dose.

Taper meds : Tapering down benzodiazepines is not easy, especially if you have been on them for so long. It has to very gradual and with doctor supervision. Once you stop, you may have recurrent anxiety and trouble sleeping. Consult a doctor before you attempt this on your own. There is a risk of seizures if abruptly discontinued.

Consult with your: Doctor. Whenever discontinuing psychotropic medications, consult with your psychiatrist . They will help you do it in a safe way. Do not stop cold turkey.

Address your anxiety: There are potential withdrawal symptoms if you stop 'cold turkey, ' so you should consult your doctor regarding how to titrate (slowly reduce) your dosage. However, at the same time, you should be addressing the underlying anxiety, by understanding it, and dealing with the causes, so that you no longer have a strong need for medications to quell the symptoms.