if by the eight time you still aren't sure if you are lucid, you should clarify to yourself what you will, and will not accept as an actual 'lucid dream'.

being lucid in the conventional sense doesn't neccessarily imply full control (or any for that matter).
it simply means knowing that you are dreaming while still in the dream. saying, "hey, i am dreaming right now, not participating in everyday waking life".

personally, i rank my lucids as low, medium, and high. i've had over a dozen lows, more than a dozen mediums, and only one high. perhaps something similar would help you classify your dreams...