is the second sentence correct in Turkish...grammatical sentence 1-istediğim amacı gerçekleştim=i achieved the goal i want. 2-istediğimi gerçekleştim= i achieved what i want.

please help me i have aquestion in Turkish. "benim söylediklerim önemsiz" that mean in English"what i said is not important. But if i want to say "what he(they) said is not important" in Turkish how it will be?......thankyou