Read, write, think of goal you want to accomplish and steps on how to achieve them one by one. Be creative. Draw, sing, dance, do sit ups, run, go for a walk, talk on the phone, ask people here.
Who is more likely to get a job? A disabled person with no experience but has good grades or a abled bodied person with good grades but no experience either?
This depends on person to person and also what the job requires. What if it's something that does not require physical labor instead is a mental or better said technical service?