Louis Tomlinson is mining strength from his greatest trauma.

Tomlinson, 27, spoke candidly about losing his sister Felicite Tomlinson, 19, and his mom Johannah Deakin, 43, only a few years apart. Felicite died of a drug overdose this year and Deakin passed away following a battle with leukemia in December 2016.

RELATED: Louis Tomlinson Covers The Killers’ ‘Mr. Brightside’

“That whole dark side I’ve gone through, it sounds stupid to say, but it gives me strength everywhere else in my life because that’s the darkest sh*t that I’m going to have to deal with,” Tomlinson told the Guardian.

“It makes everything else, not feel easier and not less important, but, in the grand scheme of things, you see things for what they are, I suppose. I’m sure every artist says this, but I do believe [my fans are an important support system.]”

Tomlinson credited his mother, in part, for developing a “glass-half-full” mentality in him: “I’ve been to rock bottom and I feel like, whatever my career’s going to throw in front of me, it’s going to be nothing as big or as emotionally heavy as that.”

RELATED: Louis Tomlinson Drops Music Video For ‘Kill My Mind’

“I’ve turned something that’s really dark into something that empowers me, makes me stronger,” he concluded. “I don’t want people to feel sorry for me. That’s not how I feel for myself. Somehow it fuels me.”

The former One Direction star has released two songs this year: “Two Of Us”, about his late mother, and “Kill My Mind”.