Im born on 9/12/1990 but now my mom have made my kundali (by jotashi,pandit) he say that i have mangal& shani?

my mom had told a pandit to prepare my kundali but here the problem is that im having mangal as well as shani so my mom is worried that when i will be getting married bec in my family most of my cousin had got this mangal and they r 30right now but unmarried.so even pls tell me that i will be doing a love marriage or arrange marriage and pls also tell me about my future even im having the tension about my life ,i m having a lots of problem in my life from last 3-4 yrs i m been failing in every standard so i have decided to do privately 10 even in 10th i have failed so pls do help me to know what my destiny want from me why is he so rude to me my date of birth is 9/12/1990 at 5:25am on sundayand born in mumbai and im now staying in maharashtra so pls tell me what should i do in which yr should i marry will my marriage be the success my husband will love me in every condition of life will he understand my feelings til how much i will study and m i going to do a jod in future pls help..