Hello I Have Lower Back Problems. I'm A32 Year Old

Hello
I have lower back problems. I'm a32 year old female and have had back problems for over 15 years I just had a MRI done and my results are L4-5 space narrowing with mild anterior and posterior disc buiging . Along with L5s1 there is a small central intervertebral disc protrusion . What do I need to do to fix this please

Thanks Jessie