I'm all for using psychedelics for introspection and spiritual explorations. It can be hard to focus on those things when you're tripping with other people, sometimes nearly impossible. In my experience, when other people are involved and have taken the same substance you have, it often becomes more of a group experience and it's hard to separate yourself from it. While the group tripping experience can be absolutely wonderful and every bit as fruitful as a solo one, it's probably not going to result in the kind of experience you're looking for.
having said that, I'd highly advise against dosing completely alone for your first time, especially in your circumstance. Any psychedelic is unpredictable, even for people who are experienced with them and a lot of bad trips happen because somebody who is distressed doesn't have anybody to talk to. If you're set on being alone for the trip, you could have a friend (sober or otherwise, although a sober person is usually better able to handle a situation should one arise) that is nearby in case you need them but will otherwise stay out of your way. Why is it that you can't have friends over?
It's definitely not safe to assume that the lack of other people will result in a paranoia-free environment. Paranoia can be triggered by just about anything. The best way to ensure a stress-free trip is to make sure you're comfortable with your surroundings, have taken reasonable measures to ensure your own safety and peace of mind during the trip, and are in a good mindset beforehand.
But since a bad trip is never one hundred percent avoidable, and you don't know how you personally will react to mushrooms, I would be concerned about the possibility of you temporarily losing rationality and leaving your house after 7. This would, I assume, prompt the cops to show up; definitely a situation to avoid at all costs.
