It's been 31 weeks since the beginning of this year. If you started something new this year, by now you should hopefully have made the leap from total beginner to initiate. If you gave around 3.5 hours a week, you would have around 100 hours experience, which, on a simplified scale is 1% mastery.
I'm taking part in the Auckland Marathon again this year, with a target completion time of 4 hours or less. That would be a one-up over last year's time. If you'd like to donate, here's my fundraising page this year: [fundraiseonline] azrielh.
I haven't managed 100 hours of piano this year - I have around 71 hours - but I managed to come up with this after about 50 takes orz:
(previous progress post: [blog] checkpoint)
I acknowledge the mistakes; 20 weeks should be enough to make them go away.
Anyway, just so you know, 5 centimetres per second may not sound like much, but it's a lot over time.