That all depends on how much you really want to learn about computers, build a spare computer, then dig in with both claws bared, the more you have to deal with and fix the more you will learn, getting things that will fix most of your problems for you is helpful YES, esp the anti viri and anti Trojans, but fix the bugs your self, you will learn much.
make book marks of your best fix-it sights, and keep them on disk, along with your best fix-it tools, and the other essentials. the more you fix-it the better you will get.
(mutant)