The problem with Yasuo is that you will have a lot of difficulty to carry alone. Have a friend who can help you out and which you can help out. Carrying with another person relieves you of half of the work. Of course you may have some diffucult games which you seem like you can't carry, but it even happens to Challenger players. Also, if you see that all of your team is AD, don't pick Yasuo and try going AP for damage balancing. I see that a lot in bronze-silver where people just play their champ and don't go depending on the team comp, which practically loses their game in advance. You also need a lot of peel for Yasuo to be efficient because people can just focus you instantly if you get too fed. Also, since Season 6 lets you choose between 2 positions in advance, focus on those. I'd say top and mid (which is what I do), because some champs can go in both lane, they are two solo lanes and you only have some differences between them like TP and Ignite. Try and master atleast 3 champions per lane that you can use depending on each and every single situations. A good trick to carry yourself out of Bronze is to spam a champion until you get out. Try and master a good champion who has relatively low play rates. Personally, I main Kennen and it's always fun to see people that have no idea how to deal with him. I got out of Bronze in 2 weeks and, in 2 months, I'm now Silver 1 and almost Gold 5. Also, you can be like John Cena and tell yourself to Never Give Up, because dank memes op. Have fun!