I'd get to a pro shop and do it right. Make sure your bow fits you (draw length), your arrows fit your bow, etc. Is that an old steel cable job with a string attached via teardrop hooks? There's nothing wrong with shooting old bows, just make sure everything is checked out for safety. I shot an old bow like that too, after a long time away from shooting I bought something more modern back in 2003. Still using that bow. You won't believe the difference in technology until you shoot a modern bow. Anyway, good luck!