After all these years, and growing up with Windows 3.1, I have seen an entire evolution of computers and software. Touch screens and large resolutions were a pipe dream just 15 years ago. Now it's the norm. Going from a Packard Bell (yes, before HP) that couldn't run 3D Ultra Mini...
If you dodge directly backwards when you're being shot at you'll probably still get hit.
Time your blocks well to negate all of the damage.
If an enemy has a sword, stay back and shoot. If it has a gun, get up close and cut.