Help Me Build My routine

Hey guys, I have tried PE before with limited success. I am going to give it another go.
Currently I am 21 and I’m at 7 length/ 4.75 around. My goal would be 7.5 by 5.5 over the next few years which I do believe is achievable.

I was wondering what kind of work out you guys would recommend.

Here is what I am thinking so far:
I will work out Monday, Wednesday, and Fridays. I’ll do some stretching post shower every morning. Right now I would be doing the following for this portion of the workout:
Up, Down, Left, Right, Straight Out, and Up and Down V-Stretches. I was wondering how many reps of each you would recommend.

I would wait until night before I went to bed to do girth routines. I would warm up a bit with some water and probably do one set of the aforementioned stretches to get myself nice and pliable.
I’m not really sure what to do for girth routines. I have jelqed in the past but I never really felt enough expansion.
I do feel expansion when I use one hand as a manual clamp at the base and use the the other hand to jelq. Not really sure what these are called.

I am getting my own place next year and I have thought about buying a bath-mate to use prior to my girth routines just to get engorged and make sure I get a great workout.

Any ideas on set/ rep numbers and what other exercises I should add.

I am trying to keep my workouts half an hour or under.

I have a pretty girth heavy routine, but I only switched to it after doing the newbie routine for a couple of months. It consists of jelqing and horse440 squeezes. I do a minute of jelqing for each horse440 squeeze. So if you are going to do 5 squeezes you need to warm up with 5 minutes of jelqing. Then every couple weeks you add a squeeze and a minute of jelqing to each set. I do two sets of these before bed every night and I can definitely feel a difference in size since I have started this routine. I can also report a jump in EQ.