She wants to marry a student like her and her family doesn’t agree
Question

                A men, who I think is a very good muslim and Allah knows the best, has asked for my hand in marriage. I love him very much but my parents disapprove of this marriage for the following reasons. They think I am too young. They think that he (we) will not be able to support ourselves since both of us are students. They want me to finish school (i am in my last year of high school) and maybe even finish university before getting married for they think that is i get married i will not complete my studies. Please advise me on what i should do and what right i have in this.
Praise be to Allah.Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allaah mercy on him) was asked a 
    similar question and said: 
The ruling on that is that it is contrary to the command of the Prophet  (peace and 
    blessings of Allaah be upon him). The Prophet  (peace and blessings of Allaah be upon him) said: “If there comes to you one with whose 
    religious commitment and character you are pleased, then marry [your daughter or female relative under your care] to him.” Undoubtedly your 
    father’s preventing you from marrying one who is suitable is something that is haraam. Marriage is more important than study, and it does not mean 
    that you cannot study, because the two can be combined. What I advise my brothers who are the guardians of women to do, is to let them complete 
    their studies; a woman may stipulate as a condition of her marriage that she be able to continue studying until her studies are complete. 
Fataawa al-Mar’ah al-Muslimah, 2/704-705. 
Secondly: 
With regard to what you mention about the situation of the one who has proposed 
    marriage and that he is still a student, being a student is not regarded as an impediment to marriage if he can afford to get married and to spend 
    on his wife on a reasonable basis. 
But if his being a student means that he cannot afford to get married and spend on 
    his wife – apart from the unreasonable demands that some families make in the conditions that they stipulate – this is addressed by the words of 
    Allaah (interpretation of the meaning): 
“And let those who find not the financial means for marriage keep themselves 
    chaste, until Allaah enriches them of His Bounty”
[al-Noor 24:33]
Al-Qurtubi (may Allaah have mercy on him) said: In this verse, Allaah commands everyone who is 
    unable to get married and cannot find any means of doing so to keep himself chaste, because the most common obstacle to marriage is lack of money. 
    So Allaah promises independence of means by His bounty, so that He will provide what one needs to get married or to find a woman who will accept a 
    small mahr, or else remove from him the desire to marry.” Tafseer al-Qurtubi, 12/242 
It should be noted that the mahr and maintenance are the rights of the woman, not 
    of her guardians. She has the right to agree to a little and to marry one whom she knows is poor, but it has to be pointed out that many woman may 
    agree to marry a man even though he is poor when he proposes to her, then shortly after marriage the woman may start to complain, and that leads 
    to arguments and divorce. This should be taken into consideration. 
Thirdly: 
We advise families and guardians not to be an obstacle to keeping their daughters 
    and female relatives chaste because of the unreasonable conditions that they stipulate regarding spending on the basis that they want to be 
    reassured about their daughters’ future. This puts off the men who want to marry them, which leads to them being left on the shelf and the evils 
    that result from that, especially nowadays when fitnah (temptation) is so widespread. Thus they harm themselves and their daughters when their 
    intention is to do good. 
We ask Allaah to set the affairs of the Muslims straight. 
And Allaah knows best.