I also started trading on Bittrex, however, do not feel you have to buy on the ask price, the idea is to buy low and sell high. So put your offer in much lower than the current trades, when your number comes up (and it will believe me) you will go in and you will also sell quicker, because your profit margin is lower than the market initially.
And remember, do not sell when you see the coin going down, it will recover. And ALWAYS BUT ALWAYS check your trading volume. If there is no volume, then you will take longer to sell. Try to buy the well known coins first to build your portfolio, then if you do not mind having a % of your money stuck on new coins for maybe months on end you at least have other money to play with.