Of course!
Depending on what you're looking for, RPing is either super chill, or super demanding. It's essentially writing a story with a bunch strangers who becomes friends, or friends that become enemies!!!
In terms of structure, it's far from strict. Pretty much write when you're ready, but don't post too rapidly or too sporadically.
I wish I could tell you more, but typing on phone is a chore. You have skype?