One thing
that propagates indecision is the ability (read authority) to move deadlines.
If you are
already an indecisive person, try some form of discipline. Stick to the
deadlines you have set.
You don’t
need more time, more data, better crafted copy, the perfect timing, (and
whatever else is your excuse, please add here.) You need to decide based on the
information you have, the experience you have and execute the hell out of it.