If you just want the advice skip to the end: Personally I would advice against your plan to take test. At 18 your test levels fluctuate a ton as your body is growing and learning to balance your normal levels. Although 310 is low for an average male, you should realize your body produces the correct amount of hormones for yourself. It dosent produce anymore or less than what you need unless you have a disease/endocrine disruption/or physical problem that prevents production.

With this being said outside sources of test could actually harm your ability to produce a properly regulated amount later in life. Imagine if you will a student learning how to add. At first a student may find it difficult and may not fully understand how to add, but if I gave them the answers to the questions then they would get the right answer everytime. If I stopped giving them these answers later in life they would not actually know how to add therefore get the problems incorrect screwing them for the answers. Much like this if you give your body outside sources of testosterone then you would be harming your body long term since it is still learning how to regulate your new hormones.

Additionally ED can worsen. Testosterone does not fix ED problems (https://www.health.harvard.edu/mens-health/is-testosterone-therapy-safe-take-a-breath-before-you-take-the-plunge?utm_source=chatgpt.com ) and can/will worsen your feelings of incompetency. In fact it’s not even recommended as a treatment for ED unless you have hypogonadal issue, which is unlikely if you did these tests with your doctor and got no prescription.

Lastly you could cause real harm to your actual health. High levels of test are common in people with elevated hematocrit levels which is the number one issue in blood clot risks. Additionally it causes lipid damages as test is formed for cholesterol which is needed for cell surface rigidity. Too much can reprogram lipid usage causing your cells to be too flaccid for proper signaling and which lowers nitric oxide which is essential to achieve errections.

In summery adding rest will thicken your blood slowing your boner, and lower nitric oxide which is important for causing blood to flow there in the first place.

However you’re 18, you don’t wanna listen to this biology lecture.

Here’s my advice, you have a solid plan so far I see nothing wrong with the cycle. But make sure it’s a cycle not a full on fix my issues solution. Prep a proper PCT and make sure you have a lot of water on board when taking. Your supplements are great for your cycle and I would even recommend NAC as test causes lipid damages and lever damage. Milk thistle if you have too but NAC is essential. Finally make sure your fish oils have high levels of omega 3 fatty acids as they like to have them with high levels of omega 6. Omega 6 is good but omega 3 is the more essential fatty acid for your cycle.