I'm not going to speculate on the reason why it took 4 attempts to take off, however from my experience, unless you have indications of engine failure, or loss of control of your surfaces, or instrumentation failure, then typically you should be good to go. That is of course, taking the nature of your plane and weather conditions and your skill into account. Until further information comes out I tend to give pilots the benefit of the doubt and assume no blatant risks were taken.
When your car doesn't start immediately, do you grab the other one in storage immediately, or do you cancel all your plans for the day? It's the same with planes, except that they are more expensive, so less people can afford spares, and for the most part, they are monitored and maintained very rigorously.