The phrase "admitting difficulties" is correct and usable in written English.
You can use it when acknowledging challenges or obstacles one is facing in a particular situation.
Example: "In the meeting, she was open about admitting difficulties in the project timeline."
Alternatives: "acknowledging challenges" or "recognizing obstacles."
On Thursday, Lee Kwang-seok, chief of the Suseo Police Station in Seoul, admitted difficulties investigating the secretive agency.
In study by Poma et al., sixty-one percent of doctors admitted difficulties in exploring suicidal ideation, but tended to ascribe this to a reluctant attitude of patients [ 22].
Additionally, the Danish GPs' seemed to have less respect for patients' demands than their Norwegian colleagues, even though the Danish GPs also admitted difficulties with rationing healthcare when patients are demanding.
This ploy allows group members the space to admit difficulties, a prerequisite for improvement: we see three students voice agreement about the problem (U2, U3), and this encourages S6 to elaborate on his anxiety (U5).
He had, he admitted, difficulty sleeping, despite resorting to pills.
But President Obama, who himself has admitted difficulty quitting smoking, has promised to sign it into law.
Eguavoen admits difficulty in bringing most of his European stars for the competition as it falls outside Fifa's international match calendar which means clubs are not obliged to release players.
Oddly enough though, Callinan admits difficulty assessing how young people felt about the lockout laws.
For his part, Bergstrom said he would like to think that coaches are more aware, but admitted difficulty in picturing male coaches readily and regularly addressing eating issues with their players.
Interview 2 Several patients admitted difficulty with answering questions about mood within the chronic disease review during the interviews.
