Hello Friend, Good that you are seeking a help here. Any relationship to go long way there should be give & take, trust and open communication. If you find any of this missing , you need to really do lot of patch work through out.
First figure out what's the reason for your fight. At this age, you need to take a matured decision for your long-term relationship. Suggest you to take a counseling support to explore your self first and get a suitable solution to handle your problems.
Next Steps
Feel free to reach out to me online through Practo app chat for further evaluation and recommendation.