There are many factor we need to use that but From my point of view , the perseverance in Bitcoin is enssential and more important . the persistence when waiting any update , when waiting the project ending , when believing in team , dev and the persistence in my choice . . . Sometimes , I hesitate when believing in the project happening and suspecting . . . . When I know Bitcoin, I study it, then I feel downheart. But when I am patient, I can take a profit from it.