the tv star has suffered with episodes of depression since childhood .
contemplated suicide following divorce from first husband .
celebrating 15th wedding anniversary with husband phil vickery in may .
has just penned a sixth novel , a good catch .
says she has talked herself out of botox , is happy to look like a 57-yr-old .
for confidential support call the national suicide prevention lifeline on 1-800-273-talk -lrb- 8255 -rrb- in the uk , or call the samaritans on 08457 90 90 90 , visit a local samaritans branch , or click here .