Deductions & credits

Thanks!  No, I am not able to go back and see my activity in the app, it only goes back 30 days.  

So, I have my excel spreadsheet, but my bank statements would only show what I put in and what I took out, which is much less than my activity in app.  If my spreadsheet of the total net winnings / losses matches the withdrawals I got, would that be enough?  

I understand that the app doesn’t have to respond. However, would the irs reach out to them about my losses in case of an audit, or would I still have to do that?