CLIENT DID GIVE ME CORRECT CHAMPION, MASTERIES, RUNES, SUMMONERS IN GAME!!!!!!!!!!

In champ select of my last game, it was blind pick and i was cycling thru champions i would like to play, finally i chose AZIR and clicked lock in! 12 seconds before the timer ran out and proceeded to change my masteries set to play that champ. THEN I HEARD THE DR. MUNDO lock in sound effect and an error message came up saying they were unable to lock in the champion i selected. I CLICKED OUT OF THE masteries menu to see MUNDO was locked in..... I said OK Then rushed to attempt to change my summoner spells ..... UPON CLICKING THE ICONS THE LITTLE MENU REFUSED TO OPEN. I I WAS FORCED TO USE FLASH HEAL. I CLICKED MULTIPLE TIMES FOR IT TO OPEN AND IT STILL DID NOT!!! THEN I ATTEMPTED TO CLICK MY MASTERIES PAGES TO CHANGE THEM TO AN APPROPRIATE ONE FOR DR.MUNDO AND NOTHING! THE PAGE OPENED AND THE GAME STARTED.... RIOT PLEASE>. THE OLD CLIENT HAD NONE OF THESE ISSUES! IT IS NOT THE FIRST TIME THIS HAS HAPPENED FOR ME!!!! I ENTERED GAME VS KARTHUS AS DR MUNDO WITH WARLORDS BLOOD LUST!! THERE WAS NO CHANCE I COULD WIN THAT LANE!!!!!!!!!!!!!!!!!! I AM NOT A GOOD PLAYER! AT LEAST HELP ME BY LETTING MY GAME BE PLAYED THE WAY I WANTED! I WANT TO LOSE AND WIN ON MY TERMS NOT BY SOME STUPID ERROR YOUR DUMB CLIENT HAS MADE!!!!!!!!! BRING BACK THE OLD, WORKING CLIENT! OR LET US CHOOSE WHICH WE PREFER! AFTER A GAME IT TAKES YEARS FOR THE CLIENT TO LOAD UP AND LET ME SEE IN GAME STATS!!! I HAVE NO USE FOR REPLAYS OR ANY OF THE NEW CLIENT FEATURES! THE OLD ONE WAS WAY BETTER!