Yes. One can start all over again but it is not easy sometimes especially when you have lost a great deal of investment but its still possible to start all over again. If you are really determined.
When you have already lost a lot of money, it's scary to try again, especially now it has become much more difficult to earn than in 2017, therefore, even with experience, it's easy to remain without money again
After a series of lost balances, it is not easy to build a new trading strategy. After losing money, emotions don't let us think independently with logic and this is the biggest reason why we usually fail in the long term.