Adding a Parameter to a Dax Query from Performance Analyzer in Report Builder

Hello- 

I am using the query created in the Performance Analyzer in Power Bi but having a difficult time modifing the query to include a date (Text Field) report parameter.  Currently the query has a variable stating to filter the report to May-21 but I want the user to be able to choose which period they would like to print. I tried creating a parameter in report builder and then adding that parameter to each dataset but then I'll get errors like "The parameter @MonthYear is not referred in the query." or "Query contains a parameter which is not declared". Any help would be greatly appreciated!!

Here's the variable that I believe needs to be modified, unless I remove the variable all together and add the @YearMonth somewhere else in the query.

VAR __DS0FilterTable3 =
TREATAS({"MAY-21"}, 'Period'[GL Period])

// DAX Query
DEFINE
MEASURE 'Internal Financial Metrics'[-Mgn R&O Filter] =
(/* USER DAX BEGIN */
IF(
([CY R&O] = 0 || [CY R&O]= BLANK()) &&
([NY R&O] = 0 || [NY R&O]= BLANK()) &&
([FY R&O] = 0 || [FY R&O]= BLANK()),
"Don't Include", "Include")

/* USER DAX END */)

VAR __DS0FilterTable =
FILTER(
KEEPFILTERS(VALUES('Internal Financial Attributes'[Project Status - Reporting])),
NOT('Internal Financial Attributes'[Project Status - Reporting] = "IATP")
)

VAR __DS0FilterTable2 =
TREATAS({"Y"}, 'Reporting Filters'[Filter for Teaming View])

VAR __DS0FilterTable3 =
TREATAS({"MAY-21"}, 'Period'[GL Period])

VAR __DS0FilterTable4 =
TREATAS({"Thousands"}, 'Reporting Multiples'[Reporting Units])

VAR __ValueFilterDM1 =
FILTER(
KEEPFILTERS(
SUMMARIZECOLUMNS(
'Internal Financial Attributes'[Group Name],
'Internal Financial Attributes'[GROUPSORTORDER],
'Project'[Project Name],
__DS0FilterTable,
__DS0FilterTable2,
__DS0FilterTable3,
__DS0FilterTable4,
"ATD___Complete", 'Internal Financial Metrics'[ATD % Complete],
"CY_R_O", 'Internal Financial Metrics'[CY R&O],
"NY_R_O", 'Internal Financial Metrics'[NY R&O],
"FY_R_O", 'Internal Financial Metrics'[FY R&O],
"Total_R_O", 'Internal Financial Metrics'[Total R&O],
"Cash_Position", 'Internal Financial Metrics'[Cash Position],
"R_O___Group_Margin_Fcst", 'Internal Financial Metrics'[R&O + Group Margin Fcst],
"MinRisk___Opportunities_Comments", CALCULATE(MIN('Internal Financial Attributes'[Risk & Opportunities Comments])),
"-Mgn R&O Filter", IGNORE('Internal Financial Metrics'[-Mgn R&O Filter])
)
),
[-Mgn R&O Filter] = "Include"
)

EVALUATE
__ValueFilterDM1