Having an open dialogue about your adoption experience from the get-go is great, but it will never negate the underlying feelings of abandonment you experienced as an infant. Even if you were adopted at birth, you spent nine months building a physical and emotional attachment to your biological mother. A sudden rupture in that relationship is deeply challenging for an infant, especially without the ability to fully understand or express emotions.
Art therapy can help you unlock the unconscious pre-verbal emotions that you may not even know you needed to express, and this process can be extremely liberating.