How come you are able to find defects in already-tested flows? As an end-user there are numerous possibilities of inputting invalid data and then expecting correct behavior.
Industry is sure moving to Automated Test execution. But as I say – Automation is confirmatory, Manual tests are more exploratory. Only Automation testing is not enough, so testers need to be good at finding bugs. “Finding Bugs” is one characteristic that differentiates a good tester from a mediocre tester. The basic principle is to combine things that programmers didn’t expect with common failure modes of your platform. Always remember, Testers don’t break the software. It is already broken. You just need to find those broken pieces and help make the software better.