How do you beat the elite four because I am stuck on it plz if you can..

I over-raised mine a bit, but that's the way I am-better safe than sorry. My team was as follows:
1)Articuno-Lv 64:Fly, Hyper Beam, Hidden Power, Ice Beam
2)Slowbro-Lv 70:Psychic, Confusion, Surf, Headbutt(HOLD-Quick Claw)
3)Jynx-Lv 65:Body Slam, Ice Punch, Lovely Kiss, Perish Song(I don't really like that last move, but it was there then, Blizzard now)
4)Alakazam-Lv 66:Psychic, Confusion, Recover, Psybeam(HOLD-Twisted Spoon)(Too heavy on psychic moves, I know)
5)Blastoise-Lv 60:Hydro Cannon, Bite, Water Gun(should've been Surf, but it didn't matter), Skull Bash(HOLD-Mystic Water)
6)Electabuzz-Lv 64:Thunderbolt,Thunderpunch, Thunder, Swift(HOLD-Leftovers)
E4-
1)Lorelei-Used Electabuzz's Thunderbolt mainly, Thunder fails too often unless it's raining! PRETTY EASY!! Watch for Cloyster-high defenses
2)Bruno-Slowbro's Surf on both Onix, and Alakazam's Psybeam for Hitmonchan and Hitmonlee, and his Psychic for Machamp. EASY!!
3)Agatha-Alakazam's Confusion on Golbat & Haunter; Psybeam on Gengar(lv 53) & Arbok, and Psychic on 2nd Gengar(lv 58). All One Hit KO's! EASY!
4)Lance-Electabuzz's Thunderbolt for Gyrados, switched to Slowbro's Psychic against Dragonaire & Dragonite(Jynx's Ice Beam or Blizzard [if she'd had it] may have been much better!)and Blastoise's HydroCannon on Aerodactyl. He ws the toughest of the 4 by far!
5)Rival Battle-Used Hyper Potion on Slowbro to fix him up after the dragon's took him down alot. Electabuzz for Pidgeot & Gyrados; Slowbro's surf against Rhydon; Alakazam's Psychic to OHKO Veusaur, and also against his Alakazam(it took some Recovers and time though!) and got him after about 3 turns b/c mine was 10 levels higher, and had Twisted Spoon. He was harder than ANY of the actual E4 though, so be ready and use potions and ethers/elixirs, etc., before you take him on!!
Basically, Psychic, Water and Electric were the most useful and high levels helped big time, but they don't have to be as high as mine were! Ididn't really even need Articuno or Jynx, but they could've come in handy though! The held items were really helpful, too! Leftovers and Quick Claw especially, and the Twisted Spoon helped, too. Hope this helped out some! If you need any more help or whatever, post again or e-mail me at [email protected] and I'll get back to you as soon as I can if you want to discuss things at length, etc., or have questions you don't want to post, about anything Pokemon and I can probably help you alot. I have all the games now, too, so questions on any game are cool.
GOOD LUCK!!!!

I'd suggest having a variety of Pokemon, and being at least level 60.

I beat it with a minimum of lvl 38 and my hightest level was lvl 53 and I never died.