May Allah bless you with piety (Taqwa) and purity, strong Imaan, forgiveness of sins, have mercy on you, elevate your status, and bless you with knowledge of Deen and generosity. Ameen!
We are pleased to hear that you regret the sins you have committed in the past. May Allah accept your taubah and give you peace of mind. You should promise to Allah tala that you will never commit such acts ever again.
This life is a test and Shaitan will always attempt to misguide you throughout your life towards the wrong direction and committing sins. Your challenge is to avoid the whispers of Shaitan and to be steadfast on the deen of Allah Subhanahu Wa Ta'ala. As they say, 'Let's forget the past and look forward to our future.' Whatever has occurred in the past, we cannot change it. The only thing we can do is to compensate in the future for our past actions.
We recommend that you speak to some elder who is close to you and speak of your need of getting married. In today's time there are a lot of families that are open-minded and do not mind their daughter-in-law going to school. Read salatul hajaat and do dua for the betterment of your future.
And as you feel your desires are not in control, you should fast, as fasting helps control the desires.
Study this article:
Cure for Pre-Marriage Love Relationship which does not lead to a Marriage
May Allah tala grant you the best spouse that loves you and cares for you inshaAllah. May Allah SWT make it easy for you, Ameen.
And Allah knows best.
Ask Alimah Team
Note: The rulings giving herein are based on the religious rulings of the Islamic Law and do not have any implications on the Law of the Country. The rulings given hereunder are specifically based on the question posed and should be read in conjunction with the question. AskAlimah.com site bears no responsibility to any party who may or may not act on this answer. AskAlimah.com site being hereby exempted from loss or damage howsoever caused. This answers may not be used as evidence in any Court of Law without prior written consent of the web site.