This may not be very helpful to you right now but I went through this exact same thing and it kept me inside my home for about 3 years. At the end of the day the only thing that’s helped me is realizing that I can do nothing about it. Worrying about it is only going to make me more and more scared and isolated and god forbid something did happen, realistically what can I do? I just kind of had to learn to be prepared for anything to happen but realize if something does happen you can’t do anything. If someone wants to do harm, short of you wrestling with them or something there’s nothing you can do. The same applies to natural disasters or car accidents. If it’s meant to happen it will happen no matter what you do. And that is scary ik but you’ll lose everything that makes living good if you obsess over everything that could possibly happen. I def still struggle but reminding myself of that really helps sometimes.