I wonder if I should set some goals/expectations for myself. If I do, I will have a target for myself to aim to achieve. If I don't, I feel like a slacker with nothing to expect in life. I do wish I have some goals/expectation for myself so I have a right direction to follow. But yet, I'm somehow afraid.

For quite some time already, whenever I aim to achieve something I want, undesired results happen and I will feel totally disappointed. These expectations are not unattainable and reasonable to be set for. Furthermore, I worked hard for them. However, result are always unexpected in the end. It makes me wonder why things turn in the wrong way. Whereas, whenever I let things be as they are and stop expecting some similar result to happen, the results are unexpected too, just that they're in the good way. When I totally do not expect something at all, I get pleasant surprises all the time. Does it mean I should live my life as it is and stop setting goals/expectations for myself? But I always thought humans should plan goals/expectations ahead in life? I'm confused. What does satisfaction come with exactly?