So what is the deal with my LP gain?

I really dont get it, in the last week of this season, i finally got my account to level 30 and started to play ranked. I finsihed match making in silver 2, from there, i climbed all the way to gold 1 by the end of the season, and this pre season i reached plat 1. I skipped a lot of divisions and made it pretty quickly ,getting 30 LP for a win until stablizing at 24-26 when i got to plat.

Anyway, after a losing streak of like, 7 games and a demote to plat 2, i climbed back to plat 1 , but ever since then im getting 13 LP, 14 LP, and losing 25 lp per loss. I still have positive winrate, 60% total win ratio, so why am i getting 14 lp per win for more than a week now, other than Riot telling me "fuck you" and pulling the plug on my LP gain?

This is so frustarating i cant even bring myself to play ranked even when i win. help