Tray 25

So, I have been wearing tray # 25 (our of 30) for a week now...... I have a feeling I will be needing refinements (refinements are another lot of trays made up for tweaking/perfecting etc) because here I am on tray # 25 and I can't see how my teeth will be perfect in only 5 more trays??? Still a gap between my two top front teeth (which I am told is supposed to close at tray # 26) and gaps on either side of my two front teeth and still have an overbite (although improved enormously)...... I am hoping for a miracle and that somehow the 5 remaining trays will fix everything but I think that is being too hopeful. What I am worried about in getting refinements is how many more trays will I need to get the end result that I want? I am hoping to be done by Xmas! My next dentist appointment is August 9th and I will be due to change over to tray # 28 by then so hopefully there will be more improvement by then!!?? PLEEEEEEAAAAASE!!!!!!!