@ Aditi,
The conjunction of Rahu and Saturn constitutes a Shrapit Yoga. This can cause difficulties in getting married since it is formed in the 7th house.
In addition, you are in the peak period of Sade Sati with Saturn transiting over your Moon.
In the dasa of Venus, both Rahu and Saturn are active.
Perform Jalabhishek to Lord Shiva on Monday(s) with proper Sankalpa to reduce the effects of Shrapit Yoga. Recite Hanuman Chalisa daily for relief from Sade Sati.
Marriage is unlikely to happen soon. It may take a few more years.