I did some research for you and found that you absolutely should NOT reduce the dosage of either of those drugs by so much so quickly. It is especially unsafe to stop the baclofen all at once as you could have seizures. PLEASE consult with a doctor who knows about tapering off drugs (most psychiatrists have experience with this) and don’t reduce anything by more than 10% a week before you do.
Stay safe and get A LOT more advice before you do anything!