What is the difference between front ends developers, back-end and data scientist?

I have Asperger’s Syndrome I was selected to participate in EU programme to train people on autistic spectrum to become software manual tester I miss few procent to get ISTQB certificate :frowning:

As kid I learned a bit of coding in obscure programming language called Turbo Pascal but this was when I was teen now I’m almost 36 years old.

I’m Polish