Until now, all my investments on ICO has been a mistake 
Why would you say so? Well too bad and di feel you too. There was also someone who have told me before, that investing to some ICO's could really be too risky, its either it will succeed or you will lost what you have risked. More importantly you must have checked all the details of the ones you are going to invest, not only the platforms but also the devs if they are really the true person behind the project, as it seems that because of lack of knowledge and research some investors just risked in everything without knowing the consequences, but i am not saying you're one of them though, and i've been a victim also before and just making sure that people reading this would also be aware.
