Cut yourself some slack. Give yourself another 10-20 years and you'll be dialed in!
If you can't wait that long, hire someone EXPERIENCED to do it for you and watch. Then you can probably get it in 5-7 years. If that's still too long, concentrate on schmoozing, and pay someone to mix it for you while you're out schmoozing. (probably a better and faster way to success....)
Taking a summer course is not a simple, quick or easy way to achieve what you're looking for. A belief that it IS easy or quick will leave you deluded or frustrated or both.