Hi,
Hope you are either studying or working by now. Check out my advice on this link
http://www.askmehelpdesk.com/learnin...ml#post2045496
I explain that there is a program offered by the Office of Education that is cheap or free depending on your circumstances. Also, depending on where you live, they might offer graphic design type courses. The program is there to assist people to find jobs.
Check out this link to acquire computer skills while at home! Click Here:
Tutorials - Online Training - lynda.com Fantastic tutorial vids on all software. It's cheap too. You have 24/7 access. It's awesome.
For the architectural drafting I would check out a community college. The courses are inexpensive and you can get financial aid.
In terms of finding a job...be clean and present yourself in a very professional manner. People make mistakes and people do change their lives around. Approach the interview with the confidence that you will "click" with the right employer and that you will get a good opportunity.
Good luck!