seriously. even for EU that's pretty low. would need to see how much of that lower 5 digits is from the flat rate services, and how much effort and time that takes.
not without knowing how much you worked, it's not. in america it's pretty trivial to work 20 hours a week and make 5 figures. heck, if you work at costco you can work for just several months and make 5 figures, part time.