What can I do to improve myself from Gold 2 to Diamond 5?

Pyrosen - Summoner Stats - League of Legends
Pyrosen / Gold 2 43LP / 159W 150L Win Ratio 51% / Pantheon - 87W 70L Win Ratio 55%, Galio - 18W 27L Win Ratio 40%, Vi - 23W 19L Win Ratio 55%, Bard - 4W 6L Win Ratio 40%, Jayce - 2W 5L Win Ratio 29%
Always looking to improve no matter the circumstances. I mained Shen to increase my map awareness, Pantheon to learn about lane domination and then Urgot to tank while being useful damage dealer wise, then Galio for pealing but I'm still a Gold player. I've watched almost every video Dyrus has posted to help learn about top lane and what I should be doing but again, still Gold with around 160 wins and 150 lose. If someone could look at my op.gg and give me some hints on what I'm doing wrong I'd much appreciate it! I know my biggest weakness is going up against tanks, Maokai, Ornn, Malphite I have never won a lane against because they do high damage while taking no damage...
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