I Had a Hair Transplant One Year Ago and Picked off My Scabs After About 7 Days.

The crusts that you had clearly must have pulled out your grafts during their critical period when they were being secured in their recipient sites. If the crusting remains, the grafts are not secure for up to 12 days after the surgery and any attempts to pick off the crusts have the risk of pulling out the grafts, including the growth centers. See our article on this, which explains this risk here: https://ift.tt/2En9eT0.