S2? Why not.

It's 4th time i leave S2 (to s3) in this week. It's even possible? Just tell me how im supposed to leave s2 if i always get big lose streak when have a lot LP.
70+lp> lose streak to 0lp and get demote to s3. 4th time. Well it can looks like complaining , but Im just asking actually. How do I leave that shitty s2? It looks like someone want me to never out of s2, lmao. I think better question would be, how to get to Gold Division? And once question more - Why I get demote if I just lose 1 match on 0lp? I know players who lose even 5 matches, and still sit in same division.