Sometimes in our enthusiasm for crocheting we tend to do a few things that are at the least careless and in the worst case scenario a major waste of time, money and effort. Before starting a new crochet project there are a number of considerations that need to be addressed to ensure success, and the excitement of a fabulous crochet pattern should always be tempered with the possibility of failure.
The first step when viewing a new pattern as a possible upcoming project is to read through it several times (yes, more than once) to ensure that the instructions are clearly understood. Not everyone that creates a crochet pattern conveys the information in the same manner - you may be a great pattern designer but a lousy communicator. Following this take note of the stitches used and the techniques that may be foreign to your experience in the craft. Why this may be a project-killer at times there are many other occasions when a brief online tutorial can bridge the gap in your crocheting knowledge and make the attempt at the project possible.
When reading a new pattern don't be in a hurry or unfocused, concentrate and visualize step-by-step how progress will be made. Replay this several times in your mind and take note of actions that are not readily understood. If the pattern was found online take this information and read the comments and reviews of others that have attempted it and the answers you may be searching for may come into light.
Lastly, when all else fails and you are still dying to try a new project consider contacting the designer of the crochet pattern. Quite often these folks will be more than glad to share their knowledge and simplify your confusion with a few tidbits of concise advice.