Hearthpwn

I am really bad at creating my own decks and I don't know what to do. I would really like it if someone could see what cards I have and help me to create my own awesome decks, but I doubt that can happen here?

What advice would you give me to help me make good decks?

I'm probably going to get a bit of hate here, but the best way to go is to netdeck and learn to replace the cards you're missing with similar curve and decent residual synergy. Doing this will often teach you how to build a deck on your own and spot the things that create synergy and/or are counter-productive to your deck archetype. Test it out, and constantly modify your decks based on the meta you're facing. For example, if you're often losing because of a mage's Ice Block, put in an Eater of Secrets, if you're getting owned by weapons, use one of the several oozes or Bloodsail Corsair. Facing a lot of divine shield minions? Blood Knight should sort you out. Facing too much aggro? Put in some AoE board clears. Etc...

Good luck with your deckbuilding - it's one of the most rewarding aspects of the game! And don't buy into people slating a particular card, sometimes you can find a really niche slot for an unpopular card, it's up to your own judgement to find something tht no one else has though of before!

Oh and I forgot to add - curve is extremely important. Don't stack a ton of Legendaries/Epics just because they're powerful cards. Some of the biggest game-changers are common cards that provide huge tempo/value swings. (See Kabal Talonpriest)