claimed wrong ITC need expert advice

i already fileed my GSTR 3b and GSTR 1 .I claimed wrong itc in my GSTR 3b, mistakes i did as follows -
1).one purchase bill wrongly entered in ledger of another party.
2).in one purchase bill mistakely write one more zero so taxable amount and tax increased so claimed more ITC

anyone please suggest me what to do now should i reverse this ITC in any subsequent month GSTR3b in tqble A part b
or should i wait for GSTR 2 matching concept