Not at all, anyone can get good it you try.
And honestly, you can't even be mad at being a scrub right now, you're a fucking beginner, you can't see results right away. You don't know every character enough to know what their overheads look like yet, you can't react to an overhead if you don't know it's an overhead.
My point is: Just keep playing, it took me 6 months to get as good as Lumin is now.