Only 4 months old, But I would Keep doing the Newbie Routine Until it seems like it isn’t as good as it used to be. Then your dick should be conditioned enough to change your routine a little.
It really depends on what you want?
Are you going for 8X6?
I am Wanting to add length then a little girth so I stretch quite a bit. I do Piss pulls almost every time I go to the bathroom for about 5 min. I stretch way more than I jelq, yet I still jelq. For me PE does more than just make your dick bigger it makes my sex life better and penis more healthy.
I don’t know I am just a newbie, But My dick is really 100% healthier from doing many different PE exercises.
If you want to add length do mostly Manual stretch until you are not gaining any more Like JAI/Vstretch. I love the V stretches. I use A piece of 1” PVC pipe. I like this the best.
Have you gained much length with the Newbie routine?
When this stops working well for me I am going to look at Hanging.