More often than not, unique outliers are no longer visible inside the concluded drawing, or they often even make the picture a lot more appealing. So, my idea in your case is: just hold drawing and don’t shed your nerve. You can intuitively compensate for mistakes with other lines. https://donovanohwkv.angelinsblog.com/36865637/new-step-by-step-map-for-ink-drawing-for-beginners