I am a new comer. I selected $1 per month plan for a trial. But I found there are only Two Items under my Online store: 1) Themes and 2) Preferences. I do not find other items as shown in the course I am taking.
I am wondering if it is because I selected $1 per month plan. By the way, I was told in the course there is a plan of $29 / month, but I do not see this plan, instead I see $79 / month plan and $299 / month plan only.
Welcome to the community forums and congratulations on starting your own ecommerce store!
It sounds like you might be on the Starter Plan currently. When you sign into your store admin and go to Settings > Plan > Change Plan, you should see something like this:
Could you confirm for me what country your business is located in? You can also see all available plans and pricing options through this page: Shopify Pricing. You will want to change the selected country in the footer to match your business so that you are seeing accurate pricing.
Our starter plan is our new plan option for merchants who primarily sell via social media. This provides a simplified online store experience and checkout that is easily promoted and shared across your social media integrations. Before changing plans (if that is the plan you are on) I would read more about it here: Shopify Starter Plan · Shopify Help Center.