United Kingdom, Feb. 16 -- Joshua Bassett's memoir is the "most vulnerable" he's ever been.

The 25-year-old actor is set to release his memoir, Rookie: My Public, Private, and Secret Life, in May, and Joshua admits that his account of his life is brutally honest.

Joshua - who previously admitted to suffering abuse and battling heart failure during his younger years - told People: "I've shared bits and pieces of my story but haven't necessarily shared how I got through what I've been through."

The actor feels he's learned a lot through his life experiences, and Joshua is now keen to share his "practical wisdom" with his fans.

The TV star said: "There's a lot of people don't know, there's a lot my family doesn't even know that's in ther...