Hello

Since you have not mentioned your category I am assuming you to be from general  category. From what you have mentioned you have o work experience (internships, part times, full time etc) you do not have high chances of getting an IIM but if you score above 99.5 percentile in CAT then maybe you can get FMS Delhi (as here there is no weightage given to previous academics or work experience which is important in the PI)Try to score as high as you can and do not lose  hope, do your best! Good Luck!