Go to your local sportsman club and see if they have a program like ours. We have members who mentor young adults (14 and up) who do not have hunters in their family to take them. Many of the young adults are from single parent homes or like your self no one else interested in hunting to teach.
Many here will start by getting you thru a hunters safety course, lots of week end range work on the shot gun courses, 5 stand sporting clays. skeet and trap. Some week ends on the rifle range and pistol range.
There is no fee for this, many times the mentor will even pick the young adult at their home. Also any members keep starter type guns around just for use by the young adult they took under their care.
There are several different county clubs here with a similar program.
Al