"Do or do not. There is no try."
In other words, pull up your socks and think of a way to ramp things up so people will say, "Kyriakos, you're not charging enough."
That said, I do understand that you have to stick with what the market will bear. Just try to nudge the market to bear a bit more. I did, and while a couple of people tried to undercut me, my clients who tried them came back since I was more experienced and would go the extra distance to help them, whether it was with a bit of free tutoring, recommendations for sources, or typing their paper at 3 am so they could pick it up first thing in the morning.