My three part Question

Hello I am green when it comes to singing often in church i hardly ever sing because people started giving me strange looks and i never knew why untill i went to go and record myself singing as i Played a song on my guitar i also play bass guitar but mainly known as an adept keyboard and Pianist theorist and yes i compose. 

When i played back and listened to my voice my heart immediatly sank it wasnt even my voice that i hear when i speak! My father claims that the voice i hear when i talk is the sound of my voice as it reverbs in my skull and the vibrations vibrating the bone structure in my skull so that is why your voice sounds different on recorded devices than what a pearson that speaking hears. I sounded like a dying FROG! I was so hummilliated remembering all the times i sang in front of people throughout the years of my life and now i am 50 and im afraid that age will affect me to becomming a good singer i dont even know my own voice key signature ! I am always at least a semiton to a full tone off pitch and have no vocal compas to internalize the sound i produce! I nee serious help hear so i thought i would give this course a try ! I know i have a dominant loud voice that carries. growing up as a kid people always said my voice projects and carries and often told to shut up! 

So my questins are3 part really , Number One, is it too late to learn how to become a singer upto a professional level ? 

Number Two How can i dissacociate my inner Head voice to match my outer projected voice ? 

Number three If i learn to sing can i sing outside in other keys of the voice spectrum i have say if i was a barritone can i range my voice to first tennor? Is that even possible ? 

1. It's never too late to learn and improve! Here's an article you might find useful: https://www.30daysinger.com/blog/can-you-improve

2. Record yourself often, and begin working with a chromatic tuner like this one! Here's an article on matching pitch specifically: https://www.30daysinger.com/blog/how-to-tell-if-you-re-singing-in-tune-using-free-websites-apps-to-improve-your-pitch-accuracy. 

3. I can't answer that question, even upon hearing you sing. Only time will tell how your voice will develop! I can only say, from the experience of working with many beginners, is that everyone's range expands as they train their voice.