rose, you can go online in/for your state to obtain the application.
i think when the timing is right that SSFI would be good for you based on your lawyers advice if you don't feel you can work but it takes time for their determining if you are eligible.
initially i got SSI at one point cause i needed time to get it together-sober and bipolar dx- but i wanted to eventually work. it gave me some income, foodstamps, and medical care tho lacking in that regard. but anything is better than our staying in the prob. at least it will allow you some momentum. after 6 months i got a part time job-was overqualified-but needed to get some confidence back. 6 months later back to my career. 7 years later after gainful employment went on SSDI due to dx.
i encourage you to consider taking the computer course. no need to compare yourself with others younger.
also office of vocational rehabilitation in your state-check it out/gp. i believe you qualify if you wish to return to the workforce. google it and make an appointment for eligibility. your dx plus wanting to get training for a job-they have an unposted job bank- plus you receive counseling. if they have the funds they may help you with some financial help. this state run program..80% federally funded, 20% state.. was designed to help ppl with disabilities re-enter the workplace after they are helped by voc.rehab.