If I write the Ads , should I run them?

Heyyy , so I am a copywriter and I am wondering about : I know I can offer ads writing..but what is exactly my work ? Do I have to choose the time to launch these ads ? Do I have to just write it ? If so , who is going to run it ? Or who am I going to contact with to run it for my client? And if I just write the Ads , do I have to design the post or what ? Or I have to hire a graphic designer ? Look I am new to this game so please tell me what to do 😭