Many good answers here. I specially like @DiegoPalacios and @storytimebiondi visions.
I believe each story asks for different tools. Different pacing, different focuses. I mean, it's pretty obvious there's not one way to do it. Great artists have different styles that illuminate different aspects of storytelling.
I think you do have to stop and wonder why you're telling the story the way you are. I write, can't draw for crap, but I always discuss with my partners and give some suggestions for angles and layouts. I believe you have to visualize in a visual medium.
I can relate. Super relate. That said, my friend, learning is a never ending process. It never stops. You can always start. It's frustrating to feel ''left behind'', but I hope you power through. Think like this: here you are, looking to improve and with a series on Tapas. You're moving, and that's what matters.
(That's a case of ''do as I say, not as I do'', but oh I'm trying)
But is it not?
In a way, all we do is a mirror of ourselves, I believe. Stories are no different. There's some of us in each character.
Now, don't get me wrong, it's boring as shit when you read a story that has no characters, only discourse (I'd know, I've done some and regret it deeply), but still, it's your soul in the paper. It's you. To me, of course.
I kinda like to grind...