I never ventured to Wattpad but I keep hearing stories.
I welcome you to Tapas though!
What I think you should know about Tapas and novels is the novel's side of the house is still small in comparison to the comic side (it's much newer) and it will likely time to gain a following.
Been activity in the community, focusing on a quality product, a consistent upload schedule, and patience will all be the basic tools for gaining ground.