Knowledgeable support symptoms and conditions

I was put on Neurontin to help with the side effects of discontinuing the use of Lyrica. Not too bad a trade off .....Or so I thought. Now I have been taking 1500 mg a day for almost a year and I want to stop taking this drug. My memory is shot, I can't find the words I want to say even for the most mundane things, my vision has deteriorated, and the worst of all has been my mood swings and sleeplessness. My family has paid a tremendous toll for this drug. Emotionally - not monetarily.
I just want to stop taking this and can't seem to find any information to help with that. I know neurotransmitters have been affected and I just want to be done with this and have the old me back. I really do miss the real me.
If anyone has been successful at stopping this or knows where I can find knowledgeable support please let me know. Thank you from me and my family.