That Pro line was from the mid 1970's. How tall you are has nothing to do with your draw, it is how long your arms are. Most people can get away with a 32 inch draw.
I would go to a archery shop with the bow and ask them to measure your draw, check out the rest (what the arrow sets on while at draw and rides on when you release.) Get that string changed first thing.

It is a very capable bow that was in the mid price range when new. I have a Pro line Cyclone, still use it today for rough fishing. Harvested many deer and a couple turkeys with it during its time.

A good target is a couple hay/straw bales and throw some used carpet behind to stop any pass thrus. You can make some closed cell foam insulation targets buy making a holder and gluing a few layers together too. Start close like 10 to 15 yards and work back.
Have fun. Practice holding the draw too, many times a deer will at the last minute stop behind a tree of bush and you will need to hold the draw or risk being seen letting off.

http://totalcompoundbows.com/proline-archery/

Al