Hello! So this may have already been answered/asked and I missed it. If so, sorry! Do you have to purchase the products you are selling before the demand is there? For example, I start my website and all for sports gear. I have no product or customers yet. In order to get started, I have to buy 200+ items of sportswear to stock and supply my web business and then try to sell those items.
I wouldn’t say you can’t be successful with a free domain, for example barenakedscam.siterubix.com, but having a personal domain will definitely help with branding and makes it more credible, plus there’s no restriction on the design if its your own domain. Free domains have certain restrictions in terms of the customization of the look and feel of the website.
It is possible but it will be difficult. To be honest, nothing is guaranteed and it really depend on each individual. There are people who join as Premium but did not make any money and there are people who join the starter membership and started to make money. With Starter Membership, especially for beginners, you will have limited knowledge and you will be stuck at one point and do not know where or how to move on, furthermore, you will not have the support system where you can ask for help when you need it. If a Starter Member were to make money, I would assume that the person has already some knowledge on Online Marketing.