What would you do if you were suddenly teleported to the past? For me the answer is simple. I'd kill myself. Before we get too hasty here, I'm not suicidal, I swear. I have too much nothing to do to die. But, if I were teleported to the past, in order to not alter a single event in history, I would find a remote area and discreetly kill myself. No matter what atrocity I could prevent, it's not worth messing with the timeline to prevent. As a result of preventing one tragedy who knows how many more could occur? Is this the right thing to do though?
Same as I do now, try to enjoy life.
Probably try to make use of future concepts, be it tech or theory in various fields, then fail at it as I don't actually know how much of it works.
But maybe get lucky, or just the gist of some ideas be enough.
Maybe only end up as 'mildly intelligent servant.
Maybe only have small success at minor business of original for the times concept.
Maybe become powerful/wealthy instead of lesser results.
But I'd 'try at success and ease, the more the better.
As for the timeline, well, I'm selfish, and place value and emphasis on myself.
Besides if the time line is so topsy turvy 'I get tossed to the past, things are probably screwed anyhow.
No, I think the right thing to do is to enjoy oneself, seek success.
. . .
Well, people have different values, and individuals have different values at different times.
Still, I'd say live and make of life in the past what one can.