I don't know about CyclChyk, but Crankin, I think that if you have not taken a basic skills class, you should think about it. I have similar depth perception/gross motor issues, except really, most of them are in my head at this point ... I've always had them, I think of myself as a clumsy person who is bad at sports, and it's really hard to let go and be confident when you have all of that baggage.

I took a basic cycling skills course long after I bought my road bike, and while it also helped me to figure out what did not fit right about my bike, it improved my confidence enormously. That plus lots more miles was far more helpful than miles alone.

(Since you have depth perception problems, this analogy may help you: I am not a good parallel parker because my depth perception sucks. I overcompensate so I have never bumped another car while parking, but I used to really hate parallel parking and feel like it was beyond me. About ten years ago my mother gave me a bunch of pointers that felt like cheats, but once I had a framework, I got more confident about parallel parking, and now I'm actually better at it than my husband is. But I think it's the confidence that made that happen, not the cheats I got from my mom. They just gave me the confidence in the first place.)