Once you understand non-self, then the burden of life is gone. You'll be at peace with the world. When we see beyond self, we no longer cling to happiness and we can truly be happy. Learn to let go without struggle, simply let go, to be just as you are - no holding on, no attachment, free.
We say that to 'give up all evil and to develop the good' is the heart of the Buddha's teaching. If we only make merit but have not stopped doing bad things, then we will never have a day of completion. It is like an overturned bowl which is left outside in the rain. Even if the water is falling right on it, it only touches the outside and not the inside. In this way the bowl will never get full.
Practicing meditation is just like breathing. While working we breathe, while sleeping we breathe, while sitting down we breathe... Why do we have time to breathe? Because we see the importance of the breath, we can always find time to breathe. In the same way, if we see the importance of meditation practice we will find the time to practice.
Peace is within oneself to be found in the same place as agitation and suffering. It is not found in a forest or on a hilltop, nor is it given by a teacher. Where you experience suffering, you can also find freedom from suffering. Trying to run away from suffering is actually to run toward it.
Dharma is in your mind, not in the forest. Don't believe others, just listen to your mind. You don't have to go anywhere else. Wisdom is in yourself, just like a sweet ripe mango is already in a young green one.