@bill5xc, a few thoughts for you.
In addition to reading Kettlebell Simple and Sinister, I also recommend you read Tim Ferris' "Four Hour Body". The latter book will, I think, give you some idea of how to figure out what works for you.
I don't believe you should fault yourself for weighing 145 lbs. and having Achilles trouble - the Achilles is doing a lot of work in someone running 5:00 miles at any weight.
A general strength program is a solid choice for you now. When you have a college coach, you'll hopefully be getting advice on addressing your specific weaknesses; in the meantime, things like good old calf raises should be on your program, added cautiously, but they may help with Achilles issues.
Do S&S, do Power To The People!, do any one of the many solid programs you'll find in our blog articles. Do something basic, and put in your miles in a way that helps, not hinders, your Achilles. It would be great if you could take one of our 1-day courses in order to learn how to move your body well and strongly. The kettlebell course should be your first choice. Or work in person with one of our certified instructors. We have some, although you'd likely be working with them long-distance, who are or have been track and field athletes.
The very worst thing you could possibly do for yourself, worse than doing nothing, is trying to train through an injury and making that injury worse. It's really better to sit on the couch than to do that.
-S-