I cannot "win" 5 placement games in a row matched with terrible team and beginners in ranked WHY?

I haven't played in a while but now that i do, this is what i get. EVERY single time i leave lol or an account, the teams i get when i return are beyond horrible and its like you have to play again A LOT to boost back your reputation.

0/8 in lane garen that does not look like he's trying! Ziggs 0/9 OK.... Why is it so bad, it wasn't this bad when i last played? Is this how you welcome back people in placement games? What am i to do if all my team is against me/feeding? Why is this HAPPENING?

50% winrate my hat! i lost 5 games in a row against all advanced enemies/boosters vs my set up loser teams that feed and do not know how to play league. Funny thing is i bet enemies aren't even in placements. Just signed up to mess with me.

I'm sorry to sound so angry but i did not get "normal" teams, i have not played in 3 months and this is some annoying quality of matching. on the fifth, I literally opened the inhib solo and still they lost

Also jungle xp is beyond horrible, i played a game as yi top and wrecked them good, so to all you jax/yi/ect jg players consider playing top because its not really that bad! Just play safe until ur power spike item(for me its rageblade) and win lane you get 4-5 levels over the jungler late SAD BUT TRUE. u can even clown around and still kill :)