Sharing Our Innermost Thoughts

i need your honest opinion on this.
I proposed a girl 2 years ago , she said yes and we started dating in college. After few months of our relationship, I got so much in love with her and so did she but then this CORONA happened, it completely changed my life, our relationship turned into long distance as she is from another city. Gradually my feelings for her increased but she does not have much feelings for me now due to the factors ( ldr, career stress and family pressure) and ofc my terrible mistakes .
In thiss year , we got a chance to meet after 1 year and she said that she does not have much feelings now, i thought that i would be able to work on this relationship but after few weeks again CORONA and boom again to ldr and same story and it has been 4 months.
Now pls tell what should i do , i want to marry her , take care of her but i can’t , i’m just sitting helpless . Chances are that when we will be graduating this year , she would leave me i know and i can not do any f*ing thing to get her back. I m just devastated ,not even a single ray of hope that i can be even a good bf, forget about being a better. Its her or none.
If anyone can help me i would be very thankful.