Self-Studying AP Economics

I’m thinking about self studying AP Economics next year, since my school doesn’t offer it seems like an interesting course. My questions are:</p>

<ol>
<li>Which textbook should I use to study for it? I already have 5 steps to a 5 and I love the study plan that it provides, but I know that it’s just a review book and I need an actual book to learn the concepts.</p></li>
<li>How much time should I spend per day or week to study for it?</p></li>
</ol>