need help with getting a diagnosis

SOOO, I think I have low ADHD, autism, maladaptive daydreaming and dyscalculia and I have actually mood swings I don't know how to get a proper diagnosis either online or in person (preferably online) help pls

p.s . the only thing I got diagnosed with at a young age is scoliosis btw. pls don't make scoliosis jokes in the comments pls I'll delete them and block u for that ^^  cuz  that stuff isn't nice at all