Dany6

Hey guys,i need some advice on these adjustment so i'd really appreciatr if someone could help me out with this...
The problem/s i got is,when i press the brake lever it goes all the way to the handle and touches it but i wan't it to go only halfway and then have the pads start touching the wheel.
And another issue i got is the wheel is kinda cheap and is often out of true so no matter how much i adjust those screws for fine tuning,one side of pads will almost always be touching one side of the rim...So how do i fix those two problems?
Do i firstly tighten the barrel all the way,loosen the cable pinch bolt and tighten it until the pads touch against the rim slightly and then just pinch the cable again,but then the pads would be touching the rim even more right?
So then,do i do all the same just instead of moving pads closer to the rim and closing the barrel all the way,i just close the barrel and unscrew it like one turn and then set the pads like maybe 5mm from the rim so they don't rub against it,and then pinch the cable back again?
But if i do it like that,would it then limit the lever movement,and end up having loose lever again?
And for the end to sum it all up what i'd like to do end up having is,to get the brake lever travel max halfway and then have the pads engage when the lever goes halfway....
Hopefully i explained everything right.