If you're after a free coach- look elsewhere, but people are always willing to help here.
You've got a powermeter stoo; thats all you need. It automatically makes you faster/quicker/better/stronger....
First port of call should be read "Training and racing with a powermeter". You dont have to understand it all, but the key parts should give you a better understanding of your data and a way to train what you're trying to improve. Reread the bits you arent sure on, and then ask questions if you aren't sure
You said you've had a PM for nearly a year; what have you been doing with it? Do you use the likes of Golden Cheetah and see where your shortcomings and limits actually are?
There's lots of free stuff on the tinterweb; check out stuff written by Andy Coggan. He posts regularly on the timetrialling forum too.
I think you're being a "bit" optimistic trying to drop a huge chunk of weight, AND expect a huge rise in FTP.
From experience as the weight comes off, you can only hold a ftp of x amount for so long....
Testing protocol is varied and will give varied results. Stick to one and follow it.