There are many opportunities, especially if you are okay with not getting paid for awhile.
Participate in the blogs you like. Remember to keep your comments short. Many violate this rule.
Start your own blog. If I can, anyone can!
Review books. It is a good way to build a great library.
Do good job. Work at it.
Write because you must. Your gut is driving you.
Quantity is your friend. As Stephen King says (On Writing: A Memoir of the Craft), read and write a lot! But stay away from King’s swearing!