Anyone want to talk ranked game/strategy?

Just hanging out until worlds. If anyone wants to talk strategy just comment on thread. I have 3 accounts in gold so can talk ranking to gold strategy if you silver/bronze. If higher elo can talk strategy as I am always looking for advice.

As far as advice I can give main characters I play are listed below.

Top: My worst role. Hardly play it. Been playing but having hard time winning.

Lux: main

Jungle: Main

Adc: Main , Haven't since last patch but also have played a good amount of

Support: Hard main . Used to play a lot of earlier this season.

As far as my own question. So last night I played 5 games on my 2 alternate accounts going 1-4. The 4 games I lost I played well early. I got fed in lane and or was ahead in kills and jungle cs but still lost every game. My one win I was tilted and played like shit and lost lane hard, but got carried. Question: Just a case of poor luck? Or should i have been able to win those games with a decent lead? I feel like I should have been able to carry but my teammates always did something really dumb like dying solo late game when baron elder about to spam etc. I realize I can't just blame my team and since I was ahead I feel I should have carried, but damn was it harder than usual. So yea any advice would be helpful.

So yea feel free to ask questions or provide some tips.