A scope mounted light limits your movement except for shooting, you need a hand held light moving all the time, then use the scope mounted light to finish the job. Night hunting is a different game then day hunting, lots of things to learn.
I'm assuming hardwoods are thick trees? If so I'd use a shotgun, got to be close shooting. Actually for that kind of hunting maybe you should look into a Savage over & under, a 12 gage 22 mag would do the trick. I'm also assuming you are using a hand call? At night that's better then having a e-caller away from you, you need the animals coming at you so you can see eyes.
Cold weather is always best to hunt in and I know you have cold weather. You said you are hunting alone, that is not the best way to hunt at night nor is it safe. You need to be looking for a partner, with todays interest in predator hunting that should not be to hard to do. Best way to learn is go do it.