I also do most of my work solo although I prefer having another person to share the experience with. Being alone in the backcountry, particularly at night, is something many people are not comfortable with. If you are not, you need to trust your instincts, and bring someone else, or learn to develop the confidence being alone one step at a time.
Are there risks? Of course there are but with experience you can begin to manage those risks. Have a firearm, learn survival skills, have an exit plan, have backup resources for fire, water, and shelter, study normal night sounds in your geographic region so you know what to expect, take advantage of technology, bring something (PLB, satellite messenger) that can be used to call in the cavalry in the event of an emergency, etc.
I've always believed that being out there alone will provide the greatest opportunity for an encounter as a sasquatch will feel the most at ease. I'll settle for catching a glimpse but I want that sighting, or encounter, and will gladly put myself out on a high wire to get it. If that means an interaction with an aggressive sasquatch, so be it.