Only way is down.
It is impossible to climb right now.
I even talked to Riot Support and the guy said "It is normal to lose 23 LP per a loss and gain 10 per win after naturally climbing into Silver 1.
Anyway he suggested I wait till preseason or get a better winrate, I've decided to derank my account till the gains/losses noramlize. I'm not wasting anymore time trying to climb when Riot intends for it to be impossible. Show me your average player climbing into gold having an 80% winrate and I'll change my mind. Until then I'm done trying in this game.