czech armed forces here, light infantry (our equivalent of the rangers).
i realize things here in eastern european armies are handled differently (beating subortinates into a bloody pulp is not too unusual, and there have been a few deaths and suicides. strong strikes with a fist or kicks to the head are not too uncommon for even minor infractions, like bad shooting scores. so yeah, former soviet zone of influence is a different world.) but there are some things that will help you.
as guys said before: don't stick out. any kind of attention is bad. even if it doesn't get you into direct trouble, positive attention can be just as harmfull. it will usually end with you being the go-to guy or gal for all kinds of stupid shit (i got volunteered into being responsible for the heavy weapon for example. fun time lugging that shit arround).
don't ever be the first guy. don't ever be the last. do not, ever, under any circumstances, volunteer for anything. don't be "that one idiot" you will know him when you see him. if you become that guy, it's over.
if your service is anything like mine you will constantly wonder why you were so stupid in the first place to do this nonsense to you. you are right to ask that question.