I have been blogging, well I started out "journaling" for just about 5 years. I have done more blogging in the past 2 years with my writing doubling in the past year.
That said, I am not making even close to enough money to get by on, I make a lot more money from my freelance writing than I do blogging.
For now, things are slowly progressing and I am working hard to make it all click. I don't know if it will happen for me. Even if it doesn't, I am going to do it because I love it.
Every penny I earn today is one more penny I didn't have when I woke up. In the end it all adds up.
All I can say is just keep on doing what you are doing and keep on learning.