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.
Undoubtedly, you should hasten to repent to Allaah for the sins that you committed and a sincere repentance should fulfill some conditions that we mentioned in Fatwa 87903.
Moreover, there are some conditions that the marriage contract should fulfill, the most important of which are the consent of the guardian and the presence of two witnesses. If any of these conditions are not fulfilled, the marriage is not valid. For more benefit on these conditions, please refer to Fatwa 83629.
Even though this marriage is void, it must be invalidated by either the husband divorcing you or the judge invalidating this marriage. If there are any children from this marriage, they should be traced back to the husband.
Then, if you wish to continue this marriage, you may renew the marriage contract with the permission of your guardian and the presence of two witnesses. If your guardian refuses to marry you off to a suitable man (of whom you approve), you should take the matter to an Islamic judge. If it is confirmed with him that your guardian prevents you from marrying a suitable man, then in this case, the judge would marry you off or entrust someone to marry you off. However, it is a big mistake and unacceptable for a woman to give herself in marriage by herself.
Allaah Knows best.