HIIIII im also a baby bat (in a way) and ive also been leaning into goth a lot more recently !
Some goth recs I have so far!!
Cocteau Twins- I love them because they are essentially shoegaze and mystical and I love it, ur not gonna have a clue what their saying, but they dont either so it's more of a listen than a sing-along ToT
Nine inch nails- is more industrial, you might know "Closer" is lyrically and musically so good, my fav album is "The Fragile", it got me through a hard time, that kinda vibe
Siouxsie and the Banshees- SO GOOD this was my gateway i like all albums equally
London after midnight- so good and mysterious and power and yum
Adam and the Ants- album "Dirk Wears White Sox" has a new wave-ish vibe to it !
The Cure,, id just listen to find out if you like them or not, some ppl dont some ppl do, I only have a few of their songs, I personally like their older songs more !
She wants revenge- listen to their self titled album pls, its super freaky yes but its amazeballs
Killing Joke- new wave-ish, longer songs
Joy division- STAPLE,, def listen
Bauhaus- Bauhaus
Echo & The Bunnymen- I have some of their songs, but lots of goths love them
On the advice part, I'm a bit confused bc why do u need to explain ur self-expression? (NOT TRYING TO COME OFF MEAN IM GEN ASKING) The best explanation i can think of for you in this situation is that you are just becoming more in tune with yourself, you love this for ur own reasons, being more who u are! ppl should appreciate you because of that.
For makeup,, ive heard that the sunset makeup white foundation is pretty good, i think imma start using it ! For eyelinerrrrr, im not 100% sure, id rec getting a brush and a pallete that you can wet so you can get sharper lines with the brush!!
ALSO im in US but im pretty sure this can be bought online !
Also, emphasis on the you do NOT need to explain yourself to people, whats there to explain? You're just being who you are and if they have "something to say" then pls run.
Hope some of this helps sorta I HOPE U WEAR THOSE SKIRTSS <333