"ongoing struggle with" is a correct and usable phrase in written English.
It is typically used to describe a constant or continuous effort or fight against something. Example: Sarah has been dealing with an ongoing struggle with anxiety for years, but she refuses to let it control her life.
Dave Barry and his ongoing struggle with low-flowing toilets.
Picasso's developing art is an ongoing struggle with a series of past artists.
She closed her New Hampshire speech with an allusion to the ongoing struggle with Republicans over abortion rights.
While the parallels with the American south aren't a perfect fit, it's hard to miss Northern Ireland's ongoing struggle with its history of violence, intolerance and rights abuses.
In his early years, Newcomb watched his union, the International Association of Machinists and Aerospace Workers, lose one battle after another in its ongoing struggle with management.
Killing Osama bin Laden required no help from Pakistan, but that should not persuade anyone in Washington that Pakistan is not a crucial partner in America's ongoing struggle with Islamic militants.
Kyrgios spoke then, as he had spoken to me earlier, about his ongoing struggles with motivation.
(Ben McGrath and Adam Gopnik have written about hockey's ongoing struggles with player safety, stemming from fighting and concussions).
Bjelland made music that felt like shock therapy, pulling perhaps from her own, personal darkness – ongoing struggles with drug addiction and poor mental health.
But many albums were uneven, in part because of poor choice of material, in part because of James's ongoing struggles with drug addiction.
"I'm definitely happier with how I look now," she told The Daily Mail, of her ongoing struggles with her body image.
