RE: Hoyt Raider Powerflex...got it on ebay......
First off, it isn't too old. I've seenguys shoot really old bows very well. Just practice with it. It would be helpful to you if you took the bow to a shop and had them set it right.
As far as targets go, with field points, use a bag target. Will last for a LONG time. Broadheads, I would get a yellow jacket. I bought a new block 4x4 pro, and it isn't holding up well. Plus they are twice as much as the yellow jacket.
Good luck.