I've been trying for a while. I've been using everyone's tips - don't be toxic, use champions you're good with, focus cs, be smart with bans. No matter what I seem to do, I lose almost all of my ranked games. I desperately want to get into Silver and maybe even Gold, but I don't know how, can anyone give me some tips or help me out a little?
if your losing all your ranked games then your clearly not doing any of the things you mentioned above, also get into the habit of warding when ever your trinket is up. their no secret or tips really that aren't common knowledge, just play and continue to get better.
it looks like you are just not ready for ranked yet. most people dont play ranked at all. even bronze 4s are better than most people in normals.
when i was on my first account and wasnt having any fun - i was stuck in bronze 2. i just quit playing that account and made a new one. i leveled that account up to 15 and made another new one. when i had about 12 accounts to level 10-15 i went back to my main account. suddenly bronze 2 was easy. i advanced to silver 5 in a weekend.
in other words you probably just need more practice. stay away from ranked for a while. play what is fun.
Looked at your ranked record. You're dying A LOT. so that means, you THINK you are doing the tips, "use champions you're good with". But if you're dying that much, you are not good with them, sad to say.
work on having only 5 or less deaths per game, every game.
Follow all the tips and get lucky. Only sheep don't admit to that second part being important though
So, three things:
You really need to work on farming. In your match history for both ranked and normals, your cs in the non-jungle non-support games really isn't high enough. In ranked, this might be because you're playing against people who are better than you, so they outplay you in lane and you just can't farm safely. But in normals, your MMR should be pretty accurate. So this means you have very low cs even against players who are at your skill level.
Open up a custom game with no bots and try to get 80+ farm by 10:00. If you can't do that without an opponent harassing you, you should restart and keep practicing in customs. Learning how to farm will give you a nonsensically huge advantage over players at the bottom of Bronze.
When supporting, don't upgrade to Ruby Sightstone until the very end of the game when you have nothing else to buy. Get the red trinket immediately once you get Sightstone, and get boots right after that. You shouldn't ever have a game without boots, on any champion.
one of the best things that worked for me was playing easier champions. I picked 
and he worked really well for me.
some videos that might help with this :P
Objectives man. Learn to keep all lanes pushing, and how to avoid wasting time by seiging 1 lane with your team. If everyone is mid, go top and push that.
If you have to choose between chasing that one person left or taking an objective, take that shit.
