Wow 5-6 toilet trips! How are you actually managing to get any sleep? I had a phase of going every 2 hours, but luckily it only lasted a short amount of time. I'm up to about 3-4 hours at night now, which is great.
I would do what Ery did, every time they park there make to go out and make them move. I don't mind deliveries or dropping off or picking up as it is really difficult to park in some places. However our road is massive with loads of space and I still get people who are going to the house around the corner park right opposite my drive, so we can't get in or out. I can't understand why they don't park to the side or even around the corner outside his house, we aren't short of space at all, there must be a good 30m of space to the side that hardly ever has people parked there and would be out the way of everyone!