You can check your articles on https://steemworld.org/@steembasicincome (just substitute your own name after the @). It breaks down a lot of helpful information about your account. We use it to identify posting frequency and weight the votes of individual members correctly.
Also, it is fine to sponsor as many people as you would look like and they can also sponsor you. I only send confirmation messages the first time somebody is enrolled, but you will see your share counts go up in each update.