I am at the elite 4 but I can not get by the 1st person. She is far to..

Save acharizard for the 2nd dude zapdos should be super effective on most of the first persons Pokemon dewgong is weak trade him in for sandslash try to train a psychic they are super effective

Well your Pokemon are way to weak you need at least 2 Pokemon over 60 or at least 1 and the 48 and 36 need to get to 50

First against Lorelei's Dewgong, Cloyster, Lapras and Slowbro use Zapdos or Primape and against her Jynx use Charizard.

Secound against Bruno train up a staryu or exeggcute and teach it psychic and water moves and evolve them with a leaf or water stone. Against his fighting (Hitmonchan, Hitmonlee and Machamp) use psychic moves and against his Onix's use grass or water moves.

Third against Agatha, she uses ghostes types smattering of poison thrown in. Get in there and throw in electric and psychic types to win.

Fourth against Lance use Articuno's and Dewgong's ice moves.

Finally your RIVAL
Against Pidgeot use Articuno
Against Rydon use the grass or water Pokemon you choose before.
Against Aakazam let primeape do some damage before it faints and then switch to Charizard.
Against Exeggutor use Charizard.
Against Arcanine use Dewgong.
Against use Zapdos.

Dude youre Pokemon are so weak you will never beat it like that. My suggestion is keep battling and lose every time you lose waste your money on revives or full restores. Trust me I also had this problem my raichu got stronger every time. I would do this trick with zapdos.