Nerve compression in right side of spine

Hi I am a 24 year old student. In year 2011 (when i was 17), my lower back was injured while playing cricket (during running and bowling,not externally).that time i was also a bit depressed and taking some tablets. After 15 days, i had to suffer frm typhoid. I didnt care much abt the injury that time. But since then i have been feeling stiffness and numbness in my lower back. Now, my problem has become very very bad. My MRI shows that there is compression at right side in L4-L5 region. And Right exiting S1 nerve is also compressed. Bones have becum weaker and L4-L5 interarticulari is Fractured. My weight is increasing. Though i had a healthy body but i was always more sensitive to cold. As of Now, my right side neck and right hand feels very very weak. I dont feel power in my body. Currently i am taking, Pregaba m 75 twice a day Calcirol weekly. Earlier i was also taking calcium but my problem was worse after taking that so i m nt taking calcium.