Do you crash a lot? So bad that you can't use your cell phone? If you have bright lights and good reflectors don't worry about it. I can't even remember how many centuries I have done after dark. I used to get home at midnight or 2 am all the time. It is true with good bike lights, it's easier for a car to see you at night. Even if you are lying in a ditch, if your lights are on aiming up at something, it's easier to know you are there than in the day. Get a light that will allow you to see things like holes, cracks, small objects in the road. Get the most light you can afford
always. The cars can see you from the side and around a corner if your headlight lights up the gound and trees etc. Your eyes get less tired on a long ride with bright lights.
Make sure your light runs longer than you will ride, for problems like flats, getting lost, crashing etc.
I always recommend an extra hour of light if you are going rural. Don't forget, most people will at least make a phone call for you, if you just knock on the door. Some will help a lot. Carry a back up headlight and tailight, even if they are very small. Even a first aid kit might be good. In 14 years the only problem I had was riding by a bar at closing time. I had to swerve out of someones way in traffic. I realized later I did not have to take that road on my route.
Use a mirror, at night you can see a car coming all the way to the horizon in a rural area. You can also use it as a reflector if you are lying on the ground injured. Carry a loud rescue whistle if you like. If an animal runs in front of you, it probably won't even react to your headlight, but if you even speak, it will run away. Yell right away to prevent a crash.
If you wait long enough, if you are lost, the bike is damaged, or you are not terminally injured, it just turns back into daylight again all by itself!
Just wait. You would just be sleeping anyway. The more you ride at night, the more you like it, the better at it you get, and the more relaxed you get. I have done lots of rural riding, riding in the woods, mixed with small towns and heavy traffic, don't worry about it. You're never really stranded if you can walk to a house. Only delayed. Bring an extra warm jacket if you might get stuck waiting in cool weather.
When I finally bought a bright light that would run for 8 hours, I could relax a lot more. In the summer, even if I got lost I would have light until the sun came up. Just like a car. It was a very relaxing, secure, thing to realize you don't have to make it home in a rush because you will run out of headlight. Probably the best thing I ever did to enjoy night riding more. I also can see far enough ahead to go fast downhill, that makes you feel relaxed, and be safer too.