Past share trading details

I am a salaried person and have been filing the tax for previous years. Last to last year(2018, 2019) I had started trading and have booked loses but haven't filed the same in ITR. Later this year(2020) I had booked some profits in trading. Can I file the loses by revising the old Filed ITR and get the loses carried forward to the current year to adjust with the profits booked?