i always wash clothes cold and by hand if they're delicate NEVER wash something hot please
it destroys clothes i found
it fades them and messes them up
dont ever tumble dry clothes ever and try to avoid ironing them
my clothes stay in mint condition usually as i atek very good care of them... i wash hot only stuff i dont care for .... if its really dirty hand wash but dont scrub hard in one place as it can cause patchy fading
and about the sizing.... I'm a UK 4-6 . I wear size 0/1 and size XS/S and in H&M I buy size 32 .... abbey dawn small is a little big on me in the hoodies.... but its a nice big fit

also i'm short i found i'm definittly 5 2" so maybe thats why my clothes seem big
but i dont look skinny ???? its weird .... maybe its cos im short lol