Symeon, get the Bas Rutten workout cd's. He will call out instructions & combinations to use on the heavy bag. It will help your intensity when you are responding to his voice instead of thinking about what you should do next.
Ha ha, yes, ditch the Affliction shirt, no offense. It did make me smile, though.
Your neighborhood has lovely trees.
Don't worry about your age, I'm 45, too. Hard training, good food, & diligent recovery & your fitness will skyrocket.
Welcome to the combat sports forum, we're happy to have you.