Aloha Adwo,
That's a spattering of questions. Here's a quick once over (pardon me for it's brevity this morning)
Funds
This is the one course we publish that Paul Scheele and Pete Bissonette constantly say is the one to have availably in you life, if you're considering purchasing any of our programs. It has made that big a difference in their lives.
Eyes
Yes Spring Forest Qigong (SFQ) can help relax and support them. Consider converting half /of your internet time into searching for some simple things that can help you like Palming and a few other Bates method eye exercises. Spend the other half doing them.
Sports
(Okay, I just had to take a minute to look up "parkour" - I think my two-year-old Zaiah will love it after while!).
The exercises in Level I can help keep your channels open and your energy centers full. The sword fingers exercises in that level can be used for healing those issues you've mentioned, and in Level II you can learn detecting and healing that you'll find yourself using regularly on your self and others once you get into it.
SFQ can assist in develop your focus. You still have to integrate it in into your life. Chunyi introduces walking and sleeping qigong in Level I, that you can adapt to all sorts of daily situation. The more you do, the bigger benefits for you - yet you can do a little here and a little there during the day and get benefit.
Flexibility opens up as your channels open and blockages are removed. If you want to specifically work on your flexibility, there are some good yoga and general stretching systems out there to implement into your pre-
parkour warm-ups.
Much Love, Shawn