Get off of this site and go to Tradang.com or Tradtalk.com
A great reference is Shootingthestickbow.com
Learn to set it up correctly. It will require a Dacron ony string. The string has to be set or the proper brace heigh range. Not just an arrow will work. They need to be matched to the bow and you.
You are likely going to struggle with the 50# Bear. Bad habits develope and stay with too much weight while learning.
Find an archery club near you that has recurve and longbow shooters. They will be your best help.