Hi! The word "job" is only a noun. It refers to someone's career or profession, something that they do every day, or some days a week, and get paid for. Some examples of it: "I have a job" - means I am employed "This is my job" - you can say this when telling or showing to someone what tasks or actions you do for your job, (so a teacher might say that explaining math to students is his job). This sentence could also be said with emphasis on MY, which someone might say if another person is doing a task that they are supposed to do. For example, if Joe is cleaning dishes, but the task of cleaning dishes was assigned to Tim, Tim might say "Cleaning dishes is MY job, not yours." Work can be a noun OR a verb. Like job, it can refer to a career or a profession, but it can also be more general, and is often used when talking about things that need to be done. Here are some examples: "I am at work" - here, "work" has the same meaning as "job". The person means that they are at the place where they go every day to do their profession and get paid. This is more common to hear than someone saying "I am at my job", but that would not be wrong either. "I have work to do" - This can be used for many things. It can be said to emphasize that you are busy, and cannot do something else because you have work that you need to do. Or it can emphasize that you have started a task or project, but you are not close to finishing it, so you have a lot of work on the project to do. This can apply to housework like cleaning or cooking, schoolwork (like studying or reading, sometimes also called "homework"), or the work at your career. Here is a good reference for more: https://www.espressoenglish.net/difference-between-job-work-and-career/

Question 1: "He was out almost before his little green Toyota had stopped" == This sentence uses an exaggeration to put emphasis on how he got out of the car, and it means that he got out of the car so quickly and purposefully, that immediately when the car was stopped he got out. Emphasizing that it was so immediately that it was almost as if he got out of the car before it stopped. You could say the same thing with "He was out as his little green Toyota had just barely stopped" but that doesn't emphasize his exit as well as the original. The sentence you added "He was out before his little green Toyota had ALMOST stopped" would mean that he was out of the car before he tried to stop his car, but the car didn't stop. So, in that case, the car is still going, because something didn't allow it to stop. Question 2: : 'He had been out almost before his little green Toyota stopped' does not appear grammatical to a native English speaker (AKA whether or not the sentence uses correct grammar, it isn't something someone would natural say, and I had to read it a few times to figure out what is meant). "He had been out" is telling me that he was out before, but he is not now (either he is back in, or he is somewhere else), or that he is in the state of being "out" and has been for some time now, which loses the meaning of him exiting the car. Neither of these really fits with the fact that his little green toyota stopped (just now). "almost before" is a confusing phrase here, I think in the original sentence, the word "almost" means "it happened right as or immediately after the car stopped" and because "been" implies that the action continued over some time, it doesn't completely make sense.

If it feels too uncomfortable, you could try just not using "themselves" and instead saying something like: "Feels an urge to modify their own present learning approach" or "feels an urge to modify their present learn approach independently". Both of these convey the same meaning as your original sentence, and sound natural.