I've been playing since I was 12. I'm 36 now, so I've got a few years under my belt. I'm a 3.7 index right now, which is the lowest I've ever been. I'm lucky enough to live on a private course where I'm a member so I can play whenever I want very easily. That's helped my game get to where it is now. I don't have any recent swing video, or I'd post it.
I know you didn't come here for tips, but since you posted your vid, I'll give you my 2 cents. Your swing isn't bad at all. Dp you still struggle with slices a bit? Looks like you've got a weak grip. You might want to try turning that right hand under a bit and make sure you can see at least 2, if not 3, knuckles on the left hand. Maybe try to extend that left arm out a bit to the top of your backswing to create some width. You'll get a lot more power and consistency than if the club is just laying across your shoulders. Other than that, looks good. Since this is old, your new swing might not look a damn thing like this. If that's the case, please disregard everything I've said.
Looks like you're at the range at the lighted course off the 405 in Lawndale.