Don't take offense, but what you're doing is too dangerous. You have no idea what you're doing and you're fiddling around with things that could easily kill you.
That's why no one likes to help you kill yourself, the danger is totally real.
Don't you know anyone you can at least do the power supply with? You could learn and then do it yourself later on. This is really too dangerous, your mains connection knows no mercy and even if you don't get a direct electric shock, you can put yourself and your family/friends in real danger later with a faulty power supply--> fire hazard!
Don't get me wrong, but the questions you're asking clearly show that you're beyond your capabilities and it's just too dangerous for that here. Seek help locally...