You maining mid/adc atm? If not correct me :)
Now you've been playing for ages so you likely know much of this. If you really want rapid results, find a high elo player willing to duo in norms to help coach you
Getting to the top of silver is relatively simple which I'll address in a sec. Getting into gold however is all about luck. From my experience you will be matched with silver 5-1's and maybe a gold V but matched against high silvers/golds, plats and even the occasional diamond. Possibly like me, you will get in by getting 2 free wins and lucking out on a solid team that carries the hell out of you.
As for you yourself. Practice the basics: last hitting, warding and awareness, decision making and roaming. Many players try to do fancy plays or go for one kill too many, the kill that generally gets them killed, tilts them and destroys their lead.
During my time in gold and brief period in plat (I lost every game and got demoted so fast XD), I played top and I preferred tanks and passive juggernauts like
and
. Last hitting and not feeding was the most important thing I could do up there. And so it's what I practiced and got decent at it. I'd generally out farm my enemies and even
couldn't make my score look horrid.
Based on your matches you don't ward much at all and you seem to die, kill for kill most of the time. Possibly due to a lack of wards. You do buy control wards which is great. A different spot to place them is the blue buff side bush near, but not in river. Or the red buff side bush near dragon pit. If placed on the enemies side they will spot allot of river traffic as well as the enemy jungler as they go from camp to camp. If you want it to last then place it on your own side.
Try and get in the habit of warding your lane bush every time the trinket comes off cooldown.
Decision making & roaming: A mistake you made in the zed game was delaying your seekers armguard. If you got it first then gone into lich bane you may have won lane :). I'm not sure how much you roam but it's an invaluable thing to be able to do. But that will require upping your awareness so you're constantly looking for potential roams.
Keep it simple:
Keep your champion pool compact but flexible. If you play adc mainly then your pool doesn't really matter as long as they're strong atm. But if you're playing mid you need to branch out, either into other assassins or a mage or 2.
Can make a friendly recommendation,
is the anti everything that wants to jump on you. Yasuo, zed, talon. He will devour them all (you play safe and let them come to you, that's how urgot thrives, perfect for low elo when people focus on their KDA)
There's a reason there's a meta:
The meta is a meta for a reason. Picking for example,
or
doesn't make one better than another, simply a handicap. Now you're not doing this, however it's an easy trap to fall into.