What I would do is if you’re comfortable asking somebody to help, have them at random points in the day how you are acting, looking, etc. and think about how you feel about yourself. This way, it’s not as biased. If not, which I totally understand, you can try it yourself. Maybe take selfies at different points in the day and compare them later, think about how you’re trying to present yourself and how you think about yourself. I know how difficult it is to see the difference when it changes slightly each day. Another thing is to dress how you feel it looks like you. One day, I’ll wear something and it’ll feel natural and look totally like me and the next, the same outfit will look wrong and almost fake. You can also monitor your reactions to pronouns. Those are some of the things that I did. It’s a lot easier when there’s a huge change in gender, but that’s not always how it is. Take your time. Good luck!