When will the bull run start?

in 2018? i've lose a lot of money through bitcoin. because price went down. when will the bull run start and i regain my money?
My best guess is 6 to 12 months before the next halving. I expect the low of this bear market to be 2-4k. I base these of previous bitcoin cycles. I give a low probability chance of a double bubble, like in 2013, but that would need to happen by this December.