There is a value in herbal estrogens making you feel like you're at least doing something, other then that, there's very little clinical evidence to support that they do anything for estrogen based women let alone pre-HRT transwomen. Start with a therapist, yes there's a waiting period for HRT, but its not really that long in the grand scheme of things. While you're waiting, focus on getting in shape, losing weight if you need to, doing other things like letting your hair grow out. As for transition, there's plenty of things to do that you can keep yourself busy until you get your HRT letter.