Forgetting your loss is not that easy mainly when the loss is huge, and you know wins does not easily come, therefore it takes a while before I forget my loss, since I don't have a choice but what I do after such experience is to take a break for a while, then I will come back to gambling, but if the loss is small I just forget about it and carry on withy gambling activities, it does not take me any thing.
I just suffered a significant loss in a gamble I played last night, but I didn't think much of it because I didn't use any capital at all, meaning I didn't make any deposits. I found a long-standing casino site that offered cashback, so I played there and managed to make a profit, but it soon disappeared again. I wasn't upset because that was inevitable, so I just accepted what happened and didn't dwell on it.
Unless, perhaps, there was an initial deposit, then we would think about the loss, or constantly think about it. The key lies in our own perspective on gambling.
If you used your capital in gambling you would try to be more careful about winning. It would be more logical for you to cash out the money you received from cashback. To reduce the risk of losing money you should play a combination of experience and skills in gambling so that the amount of winnings increases. You will have a high expectation of winning and if you lose in that game, the wound will take a long time to heal. As you said, you were not upset even after your money disappeared in gambling. One of the reasons for this is that you do not use your own capital and you have taken it very easily.
In reality, your attitude towards gambling is that winning can be of any size, small or big. When you are not afraid of losing your money in gambling, gambling will be more attractive to you.