Perhaps the best advice I can give is to be a dedicated lurker on the Questions and Troubleshooting thread.
Even if I didn’t have a problem, I’d still read through new posts there, as the questions and answers given would regularly give me a head-slapping moment.
Further, questions I wanted to ask were being answered to other enquirers in ways my questions would not have elicted because mine would have been too method-specific. I was finding solutions to problems that entirely circumvented my troublesome work flow.
The creative methods you’ve been using, like the alpha extraction one, are faster than building sound base meshes with elegant poly flow and if speed is paramount, that’s the route to take, but if your machine is rolling its monitors up into its head and gasping its last, perhaps the slower, more economical path is for you.
Cheers,
R