This is a common tale. I have heard it alot, whether it be meds for ADD, depression, OCD, social anxiety or generalized anxiety disorder. These type of meds that target the brain are not natural and unwanted in the brain, thus the time comes when they lose effectiveness or cause many mental or physical symtoms and ill mental/physical health.
You can continue to ride the drug merry-go-round or simply get off it. These problems, even if solved by a new drug, will eventually surface again.
If you do decide to discontinue your present course, be warned you should never cold-turkey your prescriptions but ever so slowly ease off, like around 10% cut every two weeks as a guide. You may have withdrawals. Also, long after chemicals are gone, there may be some craving(or simply withdrawal type symptoms) for quite awhile after, since sometimes it takes a very long time for the brain to get used to not having the drug.
If you decide to continue taking these drugs, I hope things will get better for you, but in the long run it's probably not going to and you will have to put up with side effects and tolerance development to drugs that used to work well.
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From Adderall to Concerta 
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