Lifeline South Coast executive director Grahame Gould said the emotional and financial stresses associated with the festive season meant it was the organisation's busiest time of year.

"Because it's a very potent and memorable time, it can sometimes remind people that a loved one is no longer there and it's normal to feel sad about that," he said.

"And while the festive season can be an enjoyable and relaxing time for many, other people find it very hectic and stressful.

"High expectations and pressure to make certain days like Christmas Day perfect can also lead to people feeling a bit flat if the day does not go to plan."

Mr Gould said it was important for people to look after themselves and offered some simple tips to help them do just that.

"Your Christmas does not have to be perfect to be enjoyable. It is easy to set unrealistically high standards for yourself. Ask yourself 'does it really matter if the roast is not done the way my mother did it?'," he said.

"Don't think you have to enjoy it all the time. Give yourself permission to feel sad at some stage during Christmas, especially if it brings up memories of people you have lost.

"And try not to feel overly responsible for other people's enjoyment. Remember, you can only do so much and, if you think others are not enjoying Christmas as much as they could, that's their responsibility, not yours."

Mr Gould said people shouldn't feel like they had to get on with everyone, with festive celebrations sometimes forcing people to meet up with family members or friends they would rather avoid.

Importantly, he said, people should take some time for themselves over the silly season.

"Do something you enjoy this Christmas."

Mr Gould said Lifeline's 24-hour crisis line (131 114) would be available throughout the season and urged people to call if they couldn't manage.