So that’s why you’re having difficulty getting your website to transfer to other places. You even complained that WA may have deleted your website. Like I’ve said, it’s totally your fault because they’ve explicitly said that you need to transfer your website to other hosting before you leave. So I don’t see there’s any problem with WA for that issue.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
4) For your last question, I’m not sure what’s the “Wealthy Academy” or “WH Academy” you’re talking about. I suppose you’re talking about Wealthy Affiliate? Anyway, I understand that you’re looking for a place to get a basic step-by-step training to help you get started on doing the real thing. So, I do recommend you to sign up with Wealthy Affiliate. It’s a platform which will provide you with step-by-step training from scratch, teaching you how to set up your own website, things like that. It’s Free to get started, so I’ll see you in the community soon!
With drop shipping, you’re effectively partnering with a manufacturer or wholesaler to sell their products. This way, you don’t pay upfront costs to buy inventory, aren’t sitting on unsold items taking up expensive warehouse space, and don’t have to deal with shipping the products yourself. You simply create your site, fill it with drop shippable products, and drive in customers, with almost everything else done for you.