Cool. What tells you the decline you experienced is due to a drop in T levels? Did you even got it checked? You could try to optimize your natural T first. Embrace an healthy lifestyle. TRT should be your LAST option imho. It doesn't magically work straight out of the box and make you young again.

As a former TRT patient (legitimate) your going to be hard pressed to find an endocrinologist who is going to support your narcissistic goal of needing hormone replacement at 39 because you simply want your testosterone level to be where it was 10 years ago. I live in Florida and you would need to go to a doctor at a rejuvenation clinic and pay through the ass for something like you're describing. You'll get what you want, but it will be a lot of cash and no insurance. Problem bro is simply that my guess is your bloodwork is not going to show low test for your age. Case closed.

There are a boatload of issues surrounding hormone replacement and if you simply try to manage it on your own you could end up in a world of hurt. If you keep going from doctor to doctor to doctor you may eventually find someone who will cooperate with your vanity. I'm sure you will eventually find that doctor. You need a professional, really you do. Not going to be easy bro. Sorry. You want something that lacks medical necessity.

You should go to a doctor first bud. Get the facts first before you go making life changing decisions.

Nope you're not ready. 250mg at one time every two weeks is less than ideal. You say you're ready for the rest of your life, just like me. I'm over it. It's always something; estrogen, cholesterol, RBC, hematocrit. This is like an orchestra and if you're not a a composer you're gonna fuck yourself. Learn all the aspects before you go any further.

You need to see a doctor and get bloods done. Otherwise you're just guessing and that's stupid to mess with your health that way. Also, test-e isn't dosed every two weeks.
Regardless, a doctor is the way to go.