to optimize a self join request

[Oracleuser user]

Hi,

Please help me to optimise this request (tuninng with hints or another way..):

Select COUNT(DISTINCT T1.CIC_COU_CODE) P_CIC_COUNT_NUMB_D,T1.CIC_ACCO_NUMB,TO_CHAR(T1.CIC_DATE,'DD/MM/RRRR') P_CIC_DATE
FROM CARD_INDICATOR_COUNTRY T1, CARD_INDICATOR_COUNTRY T2
WHERE TO_CHAR(T2.CIC_LAST_DATE,'DD/MM/RRRR')=TO_CHAR(sysdate,'DD/MM/RRRR')
And T2.CIC_BAN_CODE=1
AND T1.CIC_ACCO_NUMB= T2.CIC_ACCO_NUMB
AND TO_CHAR(T1.CIC_DATE,'DD/MM/RRRR')=TO_CHAR(T2.CIC_DATE,'DD/MM/RRRR')
AND T1.CIC_FLAG_AUTH_TRAN='A'
GROUP BY T1.CIC_ACCO_NUMB,TO_CHAR(T1.CIC_DATE,'DD/MM/RRRR')
HAVING COUNT(DISTINCT T1.CIC_COU_CODE)>=2;

Many thanks and Regards