I have Created my Own Monster aka I am not Qualifed to be a Computer Technician

Well,

Any hopes of being a computer technician are down the drain! Just kidding, not that I could see myself being such, but it's nice to know that you can solve your own computer issues within your own home. Well, not necessarily in my household. Yesterday, was not a very productive day. Actually the only thing I really did other than get up and get dressed was email a friend something who had expected such on Friday, but I was busy being productive then and was hoping that that phase of productivity would roll into yesterday. WRONG-double, triple, quadruple, quintuple, sixtuplet, etc... WRONG. I noticed that my computer system seemed to be running awfully slow, so I set out to clean up some files only to discover that I really didn't know what I was doing. Then I thought it would be productive/helpful/resourceful/proactive/ (insert your choice of adjective) to resubscribe to my McAfee AntiVirus protection. WRONG, WRONG, WRONG, WRONG, WRONG--douple, triple, etc... WRONG,once again!! To make a long story that has become longer short, that was more trouble than it was worth. In the end after calling my dad and having him pretty much (thanks, Dad!) resolve the slow system issue, by guiding me through the file purging process, I ended up uninstalling the McAfee Privacy whatever the thing is called, plus something other McAfee thing because I think that was causing most of the problem in the first place. However, I think I may have a friend come over and check a couple of things for me because I was afraid for awhile that I had totally goofed up my computer.

AH........................... the lessons we learn in the land of technology. Any chances of a class in simple computer maintenance would be appreciated;however, some of us who shall remain nameless would probably need to take it about six times.