Hi Ford.energy,
I think I can help, a little.
1 and 2 sound pretty right, 3? I am in the same, or worse situation.
4. check your CPU, GENPROCLIMIT shouldn't be higher than 8, but it is dependant on your processor. Google your processor for how many cores. If you want to still use your computer, set it to 75%
5 It used to be, downloading a wallet to a new computer, adding the worker to pool and saving on config file to mine with multiple, its similar now, that is if you can get it to mine.
If you have been mining for 3 days for 15 BBP, I would stop immediately, you are better of buying them, (if you can) it took me 2.5 months to mine 6000, which is quite low. I have lost that amount, and can't set up my miner. If this keeps up BBP is set to suffer exponential decay. I would say the main reason is staffing problems. I think there is only one person actively working on the project and a handful of people helping.
running 2 PC's I was mining about 200 per day, I really wanted to see how Rosetta would do