Selfishness has a negative connotation in many situations. Yet a little healthy selfishness is not wrong.
Healthy selfishness
Many people are sometimes selfish and this is not at all strange. From evolution, it is quite normal to choose for yourself. The chance of survival was then greater. From a social point of view, selfishness is often less appreciated. It is often not appreciated if you always put yourself first and others always come second. So it is important to find a balance between these two desires. You might therefore strive for healthy selfishness. In this form of selfishness, you pay enough attention to your health, growth, and sense of happiness.
Setting limits
Healthy egoism is mainly about setting boundaries and daring to say 'no' more often. Are you invited to a party, but do you feel burnt out? Then cancel the party and plan an activity that does offer you rest, or go to bed early that night. This way you make sure that your social battery is not completely drained at the end of the week, but you still have energy for the people you care about. You seek a balance where you make time for others, but also have enough time and attention for your happiness. Some people will find it difficult when you set boundaries. Therefore, be clear about what you want and what you expect from the other person in this. That way, no conflicts will arise that you don't want at all.