Make your hubs informative as well as interesting to read. Put effort into editing them so the grammar and spelling is good. Take time to find some pictures for the hub so it looks better than just a big flow of text.
Participate in the community, answer questions.
Don't pressure yourself too much to write loads over night.
Also don't expect your earnings to shoot up right away. It takes time to build traffic and for earnings to start building.
Mostly, enjoy yourself and enjoy writing