Whether you are looking for a house, a car, HDTV, or a marriage proposal, it is the decision making process that gets involved. Briefly, it is always about looking or knowing or weighing all the alternatives. Determining what factors are important and in which order. Once you have all this, you are ready for the processing of the decision. When a decision is likely to effect you and your loved ones in the long run, it is the most pertinent to relax and take your time.

At any given time, you may have several decisions requiring to be made. In such a situation, make a list of all that needs to be decided.
Next sort them in a time frame, from earliest to the latest.
Next arrange them in the order of importance.
With each decision making opportunity, list the dependent or supporting data, people, events, documents, reports. If you feel that you will not able to decide on your own and there is help available, seek help. For seeking help, make list(s) of questions that you would like to ask those that you seek counsel of.
Every decision has consequences which may effect other colleagues, friends, relatives, acquaintances. Keep in view their known goals, objectives in mind and see that your choice is compatible with others’ objectives or goals This makes “selling” the decision, easier and acceptance is less of problem.
The time to make decision(s) requires focus and may be an uninterrupted period of time so choose that carefully.
As a practice, if you jot down:

alternatives

consquences

possible combinations

possible consultation or communication with those who might get effected

do nothing

Go over these, a few times and do what seems best. You would have made a calculated decision. Remember all decisions have a time value. Delaying only may compound the situation.

Do not panic if it turns out to be a poor decision – it will be better next time (this, of course, does not apply to marriage proposal).