Hello. Nice to meetcha.
I think you can have as many series as you want, but all of them will have to go through approval. It'll depend on you if you can keep up I'd say. RR is a good place to get your stories down, and I'm sure people will be interested in the world inside your head.
1. You post 1 chapter per day for about a week.
2. During this week you can try posting at different times until you find the time when you get the most views.
3. After the week is over you start posting 1-3 chapters per week for as long as possible (I have been doing 1 per week for about 5 months).
And that's it. All that's left is to be active in the forums and nice to your readers and other writers and you will have a great time here.
Ariana was just giving you some of the standard tips because some people jump on and try to get noticed, but they don’t quite know how things work and get bummed out when the system works against them.
You do you. The community will be there for you whatever way you want to publish, and people will read your stuff.
Just have fun.
New writers, old and experienced ones, native and non-native speakers, all of them find a home for their stories here. There are not many restrictions on the site. The only one I know and completely approve of is being nice to other users and not trolling them (the moderators are extremely proficient troll-hunters).