Sometimes I feel most of my mornings are just dealing with my newest co-worker and helping them do the same things every morning

They are not freaking retaining information and it's like any major issue they run into gets pushed on me. Before they started I liked my job, my coworkers, and the meetings weren't as exhausting. But now I still like my job. But my enjoyment is declining the more I have to explain something multiple times or a simple common sense issue gets forwarded to me