Having a strong willpower is often the foundation for any significant personal transformation, especially in fitness. From my own experience, increasing body weight or muscle mass from 85 kg to 90 kg requires consistent dedication to training and nutrition. The key is to set clear, realistic goals that motivate you through the process. For example, tracking small progress milestones such as gaining half a kilogram every week can keep you focused. Additionally, adjusting your diet to include sufficient protein and calories supports muscle growth alongside strength training exercises. It's important not to rush this journey. Patience combined with perseverance leads to sustainable results. Sometimes, mental fatigue and physical plateaus can challenge your willpower. During such times, reminding yourself of the reasons behind your goal—whether improving health, aesthetics, or athletic performance—helps maintain motivation. I also found that surrounding yourself with a supportive community, like workout partners or online fitness groups, boosts accountability and shares valuable tips. Listening to your body to avoid injuries and incorporating rest days ensures long-term success. Ultimately, the journey from 85 kg to 90 kg is not just about the numbers on the scale but about embracing the discipline and mindset that shape your growth. Willpower, as suggested, can truly move mountains when aligned with strategic effort and self-care.