What you describe is the challenge of every believer, this is because there is a God-instilled innate drive for improvement. Unfortunately, love of worldly possession makes us covetous and it lowers our pursuit of higher things like spirituality. Thus, try to minimize the value of your own worldly possessions, especially by not giving them importance when you see them with others. Ponder on the lives of the m’asoomeen and remind yourself that true success will be in the next world. Finally, increase your recitation of the Holy Quran and supplicate and remember Allah constantly. May He give you guidance and success