Make a conscious choice to perform one act of help each day without expecting anything in return or any gratitude, shifting your perspective - see 'suckerness' as a positive value of pure giving.

Create 'anonymous giving opportunities' - actively seek weekly opportunities to help someone in a way that they won't know who helped them, ensuring that the help is done truly without expectation of reward.

Whenever a cynical thought arises about helping others or when someone calls you a 'sucker', pause and change the narrative to view giving as the right and meaningful action, regardless of what you receive in return.