Yeah, it may take a few tries to get it right, but you should be able to feel it. During the process, you may find your mind wandering in random thoughts, but not necesssarily seeing any imagery or impressions. That's the start of the dreamstate. Every once and a while your conscious mind will sort of "click out" of those mind-wanderings, and you'll remember that you need to be semi-aware. Usually after a few of those (for me) I feel the shift and know when to move.

Pretty much no one can get an LD 100% of the time they try, so don't expect to, but you'll get there.