Follow the Alipdropship guides, they will get you set up on Google Merchant. After that is figured out, connect other google services (Google Ads, Analytics, Console etc) After that, you're registered. Run a basic "all products" campaign. Like Mar said, if you're spoon fed then you're not cut out to run your own business. Alidropship gives you everything you need to get started, and then some.
It's incredibly difficult even for experienced marketers so if you don't have grit to do your own research and compete then you won't stand a chance.