I have similar aspirations and this is my personal plan:
Step 1, find a mentor in your local area (completed)
Step 2, practice troubleshooting problems, helping people with builds, putting parts lists together on an online forum such as this (completed)
Step 3, get your CompTIA A+ certification (studying for this)
Step 4, either get a job at a store like CanadaComputers, NCIX, Compucenter, etc repairing, troubleshooting, building computers
OR
Start your own business or become part of a business that does the above
Step 5, If you selected "Job at NCIX" from Step 4, get into buisiness for yourself. Grow business, get more clients, expand outside your city to surrounding areas, hire helper(s) to handle more clients
Step 6, profit
Due to a mental illness, you have a 10-12 year head start on me, so you may be making it big by 30
.
Ask around on local forums and message boards, talk to people you know, even people you don't know very well, ask them if they know anybody in the tech industry who would be willing to help guide you along the path to making it in the industry. Having a mentor is very helpful. A mentor is somebody you can meet up with in person, have a conversation over lunch, bounce ideas off of, learn from.
Spend some time on this forum would be the first step I would suggest to you. Learn about AMD and Intel product lines, Nvidia and AMD/(formerly ATi) products, sound cards, network cards, networking, operating systems, and so forth. I am still learning... Maybe I'm a slow learner. I don't know... Anyways, don't expect to be a total expert in a matter of weeks. This takes time, and you have to be a student for the rest of your life and standards and specifications change very frequently. We're not talking about woodworking, where things stay the same for a long time
.
Make sure this is something you really enjoy. Are you infront of your computer all the time? Is being on the computer, tinkering with it, learning about it, something you thoroughly enjoy? Can you see yourself troubleshooting, installing, upgrading, fixing, and building computers for the next few dozen years? Are you prepared to have to constantly improve and evolve your knowledge? Are you sure you want to do something where you have to problem solve and think on your feet, often (and certainly initially) for less money than the effort is worth?