Ahh ok I got you well without knowing how many Im guess its a 5/39 game the first thing I would do is find where the numbers are trending from and this is just how I do it so dont take this as anything more then what I do.
Track (01-09)-(10-19)-(20-29)-(30-39) how many numbers were drawn from those sets each draw you will see patterns develope from that of mostly 1-1-1-2 or 1-2-2-0 that means 1 from each set and 2 from another or 2 from 2 sets then 1 from another but mostly when I used to track it would fall into those 2 groups then you need to think how do I think these numbers fit into those patterns.
Lets say you have you 6 numbers where do they fall on the chart are 3 of them from where you expect the next parttern to fall? Lets say you have the 8 numbers of 03-07-11-16-22-27-31-36
Your expecting the pattern to fall 2-1-2-0 you have both 03 07 and 22-27 falling in those ranges. You build your ticket around them but as you said its the mid numbers that kill you so now you need to look at your other mid numbers where are they on the chart? Lets say your 3 numbers are 15- 26-31 you can now chuck the 31 your not playing in the 30's the 26 now falls into your 2 20's and you see the problem.
So now looking at a ticket we are looking for 2 zero numbers we have in our group 03-07 teens looking for 1 number we have 11-16-15 2 in the 20's we are looking for 2 and have 22-26-27
Now Im looking at a range and expecting some numbers to come in from the other group set
(03-06-07-08)+(11-15-16)+(22-24-26-27-29) that gives you 12 numbers but being serious here I have not checked data on that game this is for example only.
I guess the reall thing if you are tracking is finding the fall off point as well. For example in the pick 3 Ohio a number that is hot falls off around its 6 or 7th time drawn so when a number gets to 6 I reset it at 0 changing its order. That is more a feel thing then anything else for me and Ive just started to track this stuff again the last couple days which is what brought me back here.