How do I get my 1 year old to stop being a brat? He's always crying for some stupid shit every…

How do I get my 1 year old to stop being a brat? He's always crying for some stupid shit every morning and if I take my phone from him, he cries so god damn loud. It honestly pisses me off. It would have been different if daddy was here but he's not and he's just giving me a harder time. Any suggestions?