All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
With regard to delaying the prayer from its prescribed fixed time because of studies, you should know that a Muslim is obliged to perform the prayer at its prescribed fixed time and it is not permissible to delay the prayer from its prescribed fixed time for the purpose of study as we clarified in Fatwa 83812.
It only takes few minutes to perform the prayer and it is possible to perform it at any pure place at the school or university and it is not a condition for it to be performed at the mosque. The Prophet said: "The earth has been made a place of prayer for me and a source of purification – wherever and whenever any member of my nation wants to pray, he may pray." [Al-Bukhari and Muslim]
The answer to the statement of your father ‘‘many are doing that way and education is very important’’ is that the prayer is more important than the studies and that Allaah Says to His Prophet (what means): {And if you obey most of those on the earth, they will mislead you far away from Allaah's path.}[Quran 6:116]
Therefore, large numbers are not a criterion to distinguish truth from falsehood, and Allaah will not ask a person on the Day of Judgment if he neglected his studies, but He will ask him if he neglected his prayer.
As regards marriage that no one proposed to marry you, then we advise you to earnestly supplicate Allaah to bless you with a pious husband who would help you in your worldly affairs and in your religion. Besides, you should fear Allaah as Allaah Says (what means): {… And whosoever fears Allaah and keeps his duty to Him, He will make a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine.} [Quran 65:2-3] Allaah further Says (what means): {And whoever fears Allaah -- He will make for him of his matter ease.} [Quran 65:4]
Also, you may seek the help of some pious sisters in seeking a pious husband for you and there is nothing wrong for a woman to ask about this matter.
Concerning the unkind treatment of your father, we advise you to be patient with him and be keen on being kind and dutiful to him, and you should avoid severing ties with him, because severing ties with kinship has bad consequences in this worldly life and in the Hereafter.
Allaah Knows best.