Schizophrenia can run in families, but having a relative with the condition doesn't mean you will develop it. The exact causes of schizophrenia remain unclear.
Yes, exercise does help mental health. For people living with mental illness, even small steps like walking, taking the stairs, or gardening can make a positive difference.
Yes, the NHS offers free talking therapies for mental health, including counselling and cognitive behavioural therapy (CBT). You can self-refer or ask your GP to refer you.