I think to be able to overcome the fear you have, you can do other useful activities for example, you can do activities with your wife or family.
If the loss can make your life worse, then your fear can be explained. Maybe, it is better not to risk - stay away from trading. In case that you are eager to try this activity, find the other traders and have a talk with them.
Losing a whole lot in trading is based on the ignorance of the so called trader who want to trade at all cost without doing what is properly needed. A lot of people have always rushed into trading because they heard others are making money from it, but they tend to forget the level of knowledge they need to gain before even attempting to make any market decisions.
This is not just some gamble, but a real profession and whoever wants to face such journey must have to be ready and fully prepared. Well, to some extent fear is common and may be realistic but in a way you can also try as much as possible to limit your losses rather than learning from huge losses which is the reason why a lot of people suggest paper trading or demo trading before going into real life trading.
What is very important here is to find a strategy that works for you but at the same time never forget that it is trading and there will always be room for some losses which is why stop loss is always as important as entering or exiting a position.
