How to Believe it’s Possible

I am trying to create a remote position at work. I’ve been telling myself “this will never work long term and I need to find something else” but I realized that part of why I am thinking that is because I’m afraid my boss is going to say it isn’t going to work, so I want to be the one to leave rather than have that happen. I can change my thought to “I can make this work” or “I wonder if this can work” but that doesn’t change the fear of what my boss will ultimately think. So how do I believe it is possible when it is ultimately not fully in my control?