Sushi, at this point I would not be too worried about your exact tweak state but make sure all of your shocks are the same, like already mentioned, you want them all the same length when off the car and fully extended. When you set your ride height with the shock collars, adjust them so they are even on the left and right side as close as you can. Once you do this, then you can work on seeing if the car is tweaked or not, but honestly I would not worry about it right now as you have other things that are going to effect the car. As long as your shocks are even from side to side, and your ride height is good, the car is going to be "good enough" for now. Once you move beyond the novice/sportsman class you will want to be more serious about how your car is tweaked for sure, but now it's just one more thing to complicate your life.
As for discharging, there are a lot of opinions, mine is that it's important to be consistant with your batteries more than anything. I personally use a real time tray and discharge the packs on it after a run at 2.5 amps, I leave the packs on until race day which is typically every 3 days for me. If it is going to be more than 3-4 days I will take the packs off. Just make sure your fan works and is connected when you discharge so you don't overheat the pack if it hasn't been taken down much in the car. All of my packs have stayed healthy and consistant this way for more than a year of racing on them.