50%WR +20/-36 in Iron 2

Hello,

I am new to ranked. I've been playing norms with friends for a while, and have played a tiny bit of ranked in the past. I'm pretty bad so I decided to really start trying(OTP, playing ranked, only playing when focused). I know I have very few games for the season so far, but I don't understand how ranked works well and was wondering if someone could explain it to me.

Last season I was very bad. The little ranked I played put me in Iron 4 and even there I wasn't doing well. This season I am really trying to focus, and I have already gotten much better. I finished placements Iron 2 95LP. I'm winning most of my lanes when I can play tryndamere, have an average CS of 7, and try to split around objectives as best as I can. I've had games where I did very well, but we still lost. The weird thing is my LP. I lost 35, gained 19, lost 34, gained 20, and then just now lost 40. It feels like the game is trying to push me back down to Iron 4. Is that how it's supposed to work? Have I just not played enough games for my LP to be accurate? I'm trying to get better, but it's very hard to play in Iron. Even when I win lane other lanes are messed up. I know if I win lane I should be able to influence those, but I'm learning incrementally, so doing everything correctly all at once feels almost impossible. Am I just doomed to be in Iron this split unless I massively improve?

Anyway, I'm not trying to complain it's unfair. I know if I keep playing I'll get better and understand my rank better. I just wanted some clarity on how LP works for my first serious season of rank. Also if anyone wants to give some tips after looking at my op.gg, that would be welcomed!

Thanks

https://www.op.gg/summoners/na/25karats-NA1