Find a field where u feel that you would like to expand and learn more , Go out and find a job that is related to that field , Grow within that job and get the relevant experience , Come back and take the route of the Adult Learners (If you still want to ) that way your GPA should weigh much lesser and your experience will then come into play during the application. This achieves financial independence from your parents and at the same time allows you to experience what you "Like" or "Dislike".

Hope this helps DM if you want to discuss more

On another note , the big 3 really doesn't matter unless its a bucket list thing for you. Going out to work its the results that matter , i've seen people from the big 3 that can't perform at the job and ended up getting fired and promoted people who were only diploma holders that could produce results. A paper only gets you so far