It's nice to know that a large majority of others are going through the same dilemma. I have told myself on multiple occassions it doesn't seem worth it, maybe I should just give up. But for me, it's now turned into more of a hobby than a means for "making an extra dollar." And in the long run, I guess each post you do is another investment in the platform, no matter the outcome. If you have a few spare moments here & there and enjoy the potential of having your work seen by others all over the world, then why not stick at it?
Make it a habit, not a chore.