If your laptop screen is upside down, it could be caused by a loose inverter cable inside the laptop. If that is the case, it's fairly simple to fix. Open up your laptop and check to see if the inverter cable is loose. If it is, reattach it to the motherboard.
You can change your advanced class by doing a mission for the class you want to change to. The mission is called "Changing of the Guard" and you can find it on your ship. Look at your map on the top right hand corner of your screen for the ship and you will see where the mission is located.
Olly uses Procreate, which is a great drawing app.
Boot the computer. Immediately begin pressing the F8 key repeatedly until the Windows Advanced Options menu appears. Use the left and right arrow keys to select the Safe Mode with Networking option and then press Enter.
Leaky shower faucet handles are the least of your problems. The first thing to do is to make sure that the entire shower faucet is properly sealed. If not, then you need to replace it with a new shower faucet.