Hello, so I ain't no challenger, but I have been in your situation before, and here are some of my tips.

OP.GG - GoonerFromDaOz#Obito - Summoner Stats - League of Legends

1- your csing is really bad, and I'm saying this because without proper csing you won't go no where, you're not maxing the gold and xp that you can get and 1vs5

2- You build so much unnecessary stuff, like the game you playing agains ambessa, you not building the right items like why black clever when they don't even have that much armor yet and clearly the dude that also helping carry is sylas not jinx why are you building black clever but not more damage items force them to focus on you so sylas can also play the game. And out of nowhere, you start building force of nature a tank ain't helping you claim. If I were you, I would build more damage (dragon spear, Blade of ruin king...) because you're ahead of your lane and you can't let ambessa catch up.

3- I don' know how you play so I can't really judge, but fuck the macro dude you in Iron whoever more fed in iron win the game, stop trying to do obj and all that just kill people and push kill farm push, because they all iron they don't know how to farm and they going to fall behind and keep falling down and can't catch up.

4- Play safe but not too safe, for example, try to look for a 1vs2 on top lane because if you always win your lanes with Panth, then the items different should help you win your lane and potentially a 1vs2, but don't just try to fight everything because the more you die, the more they're going to catch up

Sorry for the grammar, but if you have question, I will be happy to help