Severe Osteoarthritis of the hip

Hi ive got Degenerative Discal Disease,Terochanteric Bursitis of the right hip and severe Osteoarthritis of the right hip,I'm a home and community support worker and have just been off work for 3 months with this and depression.Ive had to go back in to work because I couldn't afford to stay off any longer,I'm currently waiting for a hip injection,my consultant says I can't have a hip replacement because I'm too young at 53 and if I did it could cause me to have my leg amputated in later life as the new hips only last 10 years.Im really struggling and really dont know what to do.