Well Jamie Here are three pics to encourage you - and indeed anyone else just starting out.
The first two show what can be accomplished in a very short time. Back in the late 1970's I had been put through a period of compulsory living as a male by my then therapist who felt that my parents had allowed me to be too gender flexible when growing up. He felt that if I was forced to try living as a "proper" male for a time I might lose the motivation to transition. Thus despite the fact that I enjoyed considerable freedom of gender expression in my early childhood in my late teens I suddenly found myself virtually forced to conform. The result is clearly visible in the first pic which was taken some time in mid 1982 on a family holiday. I was fed up and about to make the decision to transition.

The second picture was taken just over a year later. (1984) By then, thanks to a sympathetic doctor who bent the rules for me I was already postop. As you can see in those days my hair grew like a weed.

Finally for those who fear growing old. I am now over 50. (coming on for 30 years postop). This is me now. I have put on weight, and I do now colour my hair which grows rather slower these days. But overall I think I am not too bad for an old bird.

Never fear that you will not pass. Look where I started, look how quickly i changed, and look where I ended up.
I honestly can't recall the last time someone picked me out as trans. So have faith. If I can do it so can you.
I have had NO breast augmentation, no facial feminisation, just SRS and hormones. Oh and yes to be entirely honest I did have the luck to have a mild Intersex condition. I was PAIS grade 2 but trust me that isn't such a huge advantage as you might think. Just look at where I started - In retrospect the only real clue is my slight gynomastica and large nipples, and a few minor differences in bits you can't see, otherwise I was fairly typically male.