I say wear whatever speaks to you. In terms of clothing, as long as it doesn't clash there's not really a right or wrong per set. If you're buying quality clothes you find appealing then go for it.
The bigg area where rookie MtFs mess up ginourmously...and we've all done this so no judgment...is makeup. I've seen some very poorly applied makeup on here. YouTube is your friend. You have to start small.
Like for me, I tried everything at once when i just started and it was an epic fail. Cakey, smeared foundation, eyeliner was a mess and let's not even get started on the eye shadows and blushes...let's just say I hadn't quite grasped the concept of blending and it was all because I had no idea what I was doing. I looked like a clown.
But. I did research. I found out what the proper tools, best products, best application methods etc were. I practiced constantly. Now? When my makeups good it's fantastic to the point that ciswomen frequently compliment it and ask for tips.
You wanna learn how to do everything and then find what works for you. Like I'm finally a beast at applying liquid liner but I find it's harsh on me. I prefer nice brown crayon/pencil liner and mascara and falsies paired with a smokey eye using colors that create a nice contrast with my brown eyes.
Anyways I'm rambling. If anybody wants makeup tips hmu! I'm seriously fairly proud of how far my skills have come over time and I'd love to help newbies to it, so lemme know if you want tips