I think it's dangerous to ask total strangers whether or not you're "capable" of doing anything. I don't know you apart from your stats, and it's impossible to tell whether the problem was motivation and effort or straight up lack of intelligence. Hate to be harsh, but there it is.
First things first, what you did in high school matters almost none at all in med school apps. With a 1.4 GPA in high school, you're looking at a community college as opposed to a big time university. Start taking any classes you think would be fun at a community college. English, writing, algebra, and biology might be good starters. Take as many as you think you can handle at once, but not too many. From here on out, you need to be making A's and maybe a few B's, if you're serious about going to med school. From here on out, grades count a lot.
Whether you hold a job at the same time or not is up to you and depends on your situation. I don't know how loans work at a community college, but I'd hazard they work similarly to 4-year schools. Depending on your comfort level with debt, you could probably take out loans to cover all your education expenses and living expenses. Community colleges are usually less expensive than their 4-year counterparts, so that might help some. However, I know a good number of people who worked part or even full-time while attending community college and were able to cover the full tab and take on no debt.
After you do well in community college for 2 years, you should transfer to a good 4-year university. There, you can finish your bachelors degree and apply to medical school.
Throughout all this, routinely go talk to the career center counselor(s) your school has. He/she will be able to pick out good classes for you to attend and help steer you on the right path for your chosen job.
Finally, in terms of what job you want, all those require a BA, so your short-term path is largely similar for any of them. Get the BA (or BS) and work out what you want to do while you're doing it. Job shadowing is your friend.
Most important of all though, do well! If you have a GPA of less than 3.4, getting into med school becomes a lot harder and maybe impossible.