Try not to react merely in the moment. Pull back from the situation. Take a wider view. Compose yourself.

Appearances to the mind are of four kinds. Things either are what they appear to be; or they neither are, nor appear to be; or they are, and do not appear to be; or they are not, and yet appear to be. Rightly to aim in all these cases is the wise man's task.

Ask yourself: Does this appearance (of events) concern the things that are within my own control or those that are not? If it concerns anything outside your control, train yourself not to worry about it.

Consider first the nature of the business in hand; then examine thy own nature, whether thou hast strength to undertake it.

Man is not worried by real problems so much as by his imagined anxieties about real problems

I must die. Must I then die lamenting? I must be put in chains. Must I then also lament? I must go into exile. Does any man then hinder me from going with smiles and cheerfulness and contentment?

Consider the bigger picture.....think things through and fully commit!