I think it's just a case of changing your mindset and the way you look at transitioning. Give yourself smaller goals to aim for that will make you feel good about yourself rather than worrying about what you're going to end up looking like. So you might start off with cutting your hair, changing your wardrobe,binding, getting some cologne. The small things that add up to improving self confidence and decreasing dysphoria. I joke about my butch lesbian phase and it's a lot easier to look back on it now but during the time I was pre-T and out and could do nothing about it for a year and a half I just made myself feel as masculine as I could and would do little things like get my hair cut regularly and buy a new shirt or something to reinforce validation if I needed it. It's definitely a difficult tiime but if you break it down it's more manageable and less anxiety inducing than thinking about the end result. I've been out for nearly 2 years and I'm still not where I want to be but at least I'm still moving forward on the right track. Have to keep positive and moving forward, mate.