Payment under self assessment under QRMP scheme

Dear All,

I was filing monthly GSTR till now ,for Apr-june 24 quarter I have opted for QRMP scheme .

now if i go via 35% challan i will have to pay Rs.70k but if i go via self assessment it is coming close to 15K only.

Can I,by self assessment method make payment of 18k instead of 15k (3,000 more than actual tax) just to cover any mismatch and to avoid late fees/interest rising due to mismatch ?