Take the medication as directed. Keep taking it as directed for as long as directed. Discuss with the doctor ahead of time what happens in case of unacceptable side-effects. Don't stop taking medication or change dosage without discussing it with your doctor, unless you discussed it ahead of time. Remember to check about mixing other things with medication.
Redundancy is good.
Except in emergencies, it is a good idea to check what your insurance covers before receiving treatment. Do not rely on your doctor or therapist to know everything. Do some reading yourself. Some of what is available to read yourself may be wrong, but much of it will shed light on your disorder. Do ask them if you think an alternative treatment might be more appropriate for you.