Judic - living with metastatic breast cancer and due to start capecitabine tonight. Does anyone have any experience with this chemo? Stressed about side effects

I'm 72 years old and diagnosed with denova metatastic breast cancer which had spread throughout my spine ribs and sternum in Jan 2023. After 4 previous forms of treatment it has spread to my liver with APL Levels very high. I start CAPECITABINE tonight. 

Has anyone any experience of this chemo drug please? I'm now very stressed about experiencing side effects which mean I need to be started on 50% strength of the drug.