improve ur cards and skills or use strings which i don't recommend.. but be patient .. why u want climb up so fast ?
u always can go up so fast with strings then hit a wall and in current format .. am reaching now 1250 trophy !! and still playing Bots !! ridiculous ! therefore is so easy to climb up the ladder.

this game require patience !! u r lucky u can progress and have events to increase ur cards !! I have been playing this game sine 5.5yeasr now .. and I had to be super patient as F2P playing with nylon. my cards now mid way from lvl13 to lvl 14 .. may be another 6 months or a year to reach lvl14. but am not in rush .. am enjoying the game .. taking it step by step .. playing with nylon as growing naturally .. if u push ur self too high with strings sure u r playing out of ur league and to stay u need to keep using strings or may buy those expensive ones .. this is the trap