It won't be easy
Nobody said it would be easy, and if they did they were lying. There are a thousand forces in the world encouraging you to fail. 99% of them are inside your own head.
It’s going to be a push. It’s going to be uncomfortable and even painful. It’s going to feel like a huge mistake a million different times. Then you hit week two and the real problems start.
Keep your eyes on the prize. Remember why you’re doing it. Don’t be too hard on yourself. Focus and do your best; that’s enough.