To reconcile the concepts of predestination (Qadar) and free will in Islam and strengthen trust in Allah’s plan, one can take the following steps:

1. **Seek Knowledge:** Study Islamic teachings on predestination and free will from credible sources, including the Quran, Hadith, and works by respected scholars. Understanding the theological and philosophical perspectives can provide clarity.

2. **Reflect on Quranic Verses and Hadith:** Verses such as Surah Al-Qamar 54:49 and Hadiths on Qadar highlight the balance between divine decree and human choice. Reflecting on these sources can offer insights into how both concepts coexist.

3. **Consult Scholars:** Speak with knowledgeable Islamic scholars or mentors who can provide guidance and answer specific questions about predestination and free will.

4. **Practice Patience and Trust:** Strengthen your reliance on Allah (Tawakkul) by acknowledging that Allah’s knowledge encompasses everything, and His wisdom is beyond human comprehension. Embrace patience and trust in His plan.

5. **Make Dua:** Regularly pray for clarity and guidance from Allah to help you understand and accept His divine plan.

6. **Focus on Effort and Responsibility:** Recognize that while Allah’s decree is absolute, humans are responsible for their intentions and efforts. Strive to make righteous choices and fulfill your duties while trusting in Allah’s ultimate wisdom and plan.

By integrating these practices, one can better understand the balance between predestination and free will and develop a deeper trust in Allah’s plan.