A lot will depend upon what is available for you to work with.  When I started oh so many years ago, tubes were still in use and some repairs were trivial (tube replacement).  That moved to more complex repairs where tracing signals and replacing defective components occurred.  These days, things are both less repairable and significantly smaller requiring some specialized equipment.  I would recommend acquiring some broken systems and attempting to repair them.  Even failures will provide practice changing small components and soldering.  Check online for guidance with some units and start practicing.  Learn some basic electronics to see how different parts work.  You don't need to learn design (think Norton's theorem for example) as you aren't designing things, but repairing them.  Understanding the design might help to narrow done some things, but even knowing the basics will get you moving in the right direction.

Get good test equipment.  Start with a decent multimeter.  Alex has many of the items you will need if you want to focus on micro-soldering, but I would suggest you start with more basic repairs. Perhaps a board swap to "fix" the problem and then some time trying to understand the board you replaced and attempt to repair it using the good board as a guide.  Just like any other profession, practice and experience will make a difference and come with time.

Good luck.

thanks.

i would also like some others peoples experiences

I'm no pro, but I would highly suggest doing what that guy said and practice first. Get some junk boards from your local donation or recycling center. Get a decent soldering iron that has adjustable temperature at the very least. Try removing through hole and SMD components, then reattaching them.

To answer the second part of your question, Alex did mention at one point he went to college for electrical engineering or something similar.

ok thanks