I have two grown up boys. I am divorced from their dad, this happened when they were very young. I pray Allah removes the longing in my heart for a partner as this is something I have always had in my heart since I was young, yet everytime I got a partner things have always turned against me.

Trust allah and accept the plan of allah. Think positive and will advice you some amaals and duas. InshaAllah thinks will become better.

Duas for Marraige
Recite this dua 114 times in mosque or imam bargah

«اللهم اَغنِنی بِحلالِکَ عَن حَرامِک و بِطاعَتِکَ عَن مَعصیتِک»؛
Allahumma aghneni be halaleka an harameka wa be taateka an maasiyateka

Read ziyarat e ashura and dua e tawassul daily once.
Three days Wednesday, Thursday and Friday keep fast and after Juma prayers perform namaz e Jafar e tayyar.
Recite sura naas and falaq as much as you can.
Read this ayat after namaz
سوره فرقان ایه 74
وَالَّذِینَ یَقُولُونَ رَبَّنَا هَبْ لَنَا مِنْ أَزْوَاجِنَا وَذُرِّیَّاتِنَا قُرَّةَ أَعْیُنٍ وَاجْعَلْنَا لِلْمُتَّقِینَ إِمَامًا
And
آیات 131و 132 سوره طه :
وَلَا تَمُدَّنَّ عَیْنَیْکَ إِلَی مَا مَتَّعْنَا بِهِ أَزْوَاجًا مِّنْهُمْ زَهْرَةَ الْحَیَاةِ الدُّنیَا لِنَفْتِنَهُمْ فِیهِ وَرِزْقُ رَبِّکَ خَیْرٌ وَأَبْقَی وَأْمُرْ أَهْلَکَ بِالصَّلَاةِ وَاصْطَبِرْ عَلَیْهَا لَا نَسْأَلُکَ رِزْقًا نَّحْنُ نَرْزُقُکَ وَالْعَاقِبَةُ لِلتَّقْوَی