I understand that 'BIG' means different to different individuals. Here by 'BIG' I mean life-changing money (bigger than 20x of your monthly income).
1. Let the money sit in your bank account (wallet) for at least one month. It will allow you to settle down your heightened emotions. Just let the amount sit and do not do anything with it for at least one month.
I think your first point is not a good idea for a gambler who has just won a big win, we must understand and learn from experience that when someone wins, there will be many temptations that haunt their minds that will indirectly continue to encourage them to gamble again using the amount of winnings they have previously obtained and we know how easy it is to make a deposit when you have some money in your account.
Understand that saying it will always be much easier than practicing, meaning the idea of holding money in an account for the next few weeks or months is a plan that will be very easy for a gambler to break, especially if they have previously won a big win which is very likely for them to miss the previous happy scenario and in that situation it is very easy for you to make a deposit again.
This means holding some money in the account is not good, if you really want to secure everything then withdraw all the money in your account, and if necessary delete your digital account application temporarily, limiting access is really an important action to take as a barrier.