Need much help: been a disaster so far!

Normally I seem to be able to put together a decent in-game team, but XY seems to have been a disaster. Every second trainer battle I look at the typing of what I am facing, look at my team and... aww, man... I do not have a good match-up! I think I am too overwhelmed by the enormous number of Pokemon in this game and find it too difficult to sort through all the options.

I am happy to swap a couple of Pokemon when entering areas one would obviously be terrible (eg a Fire Pokemon is probably a poor choice while Surfing). I also typically carry a HM Slave through an area until I am certain I no longer need it. I have just entered Route 11 and have the following Pokemon:

Bug: Vivillon, Butterfree, Beedrill, Burmy, Ledian, Combee, Nincada, Volbeat, Illumise, Venipede, Dwebble, Yanma
Dark: Scraggy, Absol, Inkay, Houndour
Dragon: Axew, Bagon
Electr: Pikachu, Plusle, Helioptile, Emolga
Fairy: Floette, Swirlix, Snubbull
Fight: Lucario, Pancham, Mienfoo, Meditite, Machop
Fire: Pansear, Litleo, Charmeleon
Flying: Fletchinder, Pidgeotto, Farfetch'd, Doduo, Ducklett, Zubat, Wingull, Taillow, Hawlucha, Sigilyph
Ghost: Drifloon
Grass: Pansage, Roselia, Skiddo, Gloom, Ferroseed
Ground: Sandile, Hippopotas, Rhyhorn, Cubone
Normal: Bunnelby, Zigzagoon, Bibarel, Dunsparce, Skitty, Furfrou, Furret, Kecleon, Audino, Smeargle, Snorlax, Whismur, Zangoose, Kangaskhan, Eevee
Poison: Gulpin, Croagunk, Stunky
Psychc: Kirlia, Kadabra, Espurr, Spoink, Woobat
Rock: Lunatone, Solrock, Binacle, Onix, Amaura, Aerodactyl, Nosepass
Steel: Honedge, Mawile
Water: Frogadier, Panpour, Azumaril, Gyarados, Psyduck, Luvdisc

For biases, in the past I have always used my starter (Frogadier in this case). The Ralts line has long been my favourite Psychic too, though I think I need to reset the EVs on my Kirlia: tends to be killed faster than she can kill! I have been using the Bibarel as my HM Slave (Cut, Strength and Rock Smash at the moment). I want to run a balanced team that can adapt to the situation, with a nice mix of strikers and bulky options.

It could sometimes be tough to put together a well-balanced team, to be honest. If it were me, I probably would not worry about it, and use Pokémon that I feel are generally easy to utilize and whatnot.

I recommendation I would like to make, if you don't mind, is Talonflame, preferably one with Gale Wings ability. I don't believe Gale Wings Talonflame could be obtained until after we're done with defeating Pokémon League, but it could still be possible if we look for one on the GTS. This ability allows the Pokémon to strike first when executing flying-type moves, and it has access to a lot of them.

As for move-set, my suggestion would be Brave Bird, Flare Blitz, Roost (this isn't really necessary as it's in-game; if we wish, we could replace it with some other attack), and U-Turn. I've had Talonflame on my team in my first run of Y version, and it has never ceased to impress, thankfully; it could be very reliable!