Hi and wecome, Sparks is very user friendly, just wander around the site and you'll get the hang of it.
If you go to your start page in the drop down under My Tools towards the bottom of the start page you will see My spark diet,and that will take you through the whole procedure. Message Boarding is easy just join up and jump in. We're all very friendly and have all been where you are now so are very empathetic.
"Have patience with all things, but chiefly have patience with yourself. Do not lose courage in considering your own imperfections but instantly set about remedying them -- every day begin the task anew."
Saint Francis de Sales