Asalamualaikum Ustadh. I am 15, trying to improve in deen and dunya. My family isn't Muslim except my sister. Despite prayer, dua, and work in business, I see no results while my Christian cousin succeeds easily. I feel stuck, distant from Allah, and worry He is displeased with me. I need guidance.

وَلَنَبْلُوَنَّكُم بِشَىْءٍ مِّنَ ٱلْخَوْفِ وَٱلْجُوعِ وَنَقْصٍ مِّنَ ٱلْأَمْوَ‌ٰلِ وَٱلْأَنفُسِ وَٱلثَّمَرَ‌ٰتِ ۗ وَبَشِّرِ ٱلصَّـٰبِرِينَ [٢:١٥٥] 155) And certainly, We shall test you with something of fear, hunger, loss of wealth, lives and fruits, but give glad tidings to As-Sabirin (the patient ones, etc.). ٱلَّذِينَ إِذَآ أَصَـٰبَتْهُم مُّصِيبَةٌ قَالُوٓا۟ إِنَّا لِلَّهِ وَإِنَّآ إِلَيْهِ رَ‌ٰجِعُونَ [٢:١٥٦] 156) Who, when afflicted with calamity, say: "Truly! To Allah we belong and truly, to Him we shall return." أُو۟لَـٰٓئِكَ عَلَيْهِمْ صَلَوَ‌ٰتٌ مِّن رَّبِّهِمْ وَرَحْمَةٌ ۖ وَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُهْتَدُونَ [٢:١٥٧] 157) They are those on whom are the Salawat (i.e. blessings, etc.) (i.e. who are blessed and will be forgiven) from their Lord, and (they are those who) receive His Mercy, and it is they who are the guided-ones.