I would do the same thing DrCyanide suggested.
I started playing this game right before the season started and was bronze for months and it was infuriating. I scraped my way up to gold and quit playing ranked. You wont make any of the rewards of this season unless you start out high silver just because of how long the grind takes. Dont stress yourself out for no rewards.
I've been playing normals and for a bit now and forgot how fun it was to just try different champs and not really care about the result. Go into every game and practice something YOU want to get better at.
I dont ff in losses because learning how to play when an enemy or two is fed seems like a good skill to have. Learning how to ward and just flat out avoid certain champs is very helpful in winning games. Learn how to farm, practice other skills, and just enjoy the game before trying ranked. If you dont know what most of the champions abilities do, it isnt a good idea to start ranked.
TLDR Practice, Practice, Practice. Itll make the climb easier and thats what ranked is about. Seeing how far you get on your own skill/game knowledge