Try not to force anything, let it come to you. For example, when you shout, you lose relaxation and have a high chance of losing the LD. Instead, relax, focus on a visual and touch (both at the same time if you can) like feeling your hands, looking at the way your fingers move and feeling their texture. Grab something close, don't rush, it doesn't matter what it is feel how heavy it is, what kind of texture it feels like, what is it made out of, stuff like that.