You probably have your mind set on doing this cycle so I will dispense with the eat right sleep right train right stuff. Plus you are of age to make up your own mind and physically mature as well.
First just cover bases. I recommend getting blood planels before you start just so you have a base line to judge if you have damaged anything after the cycle.
You will probably end up needing 0.5 mgs of arimidex EOD with that dosage. Everyone is different but still go read up on signs of high estrogen and low estrogen. You should just know them so if you notice something you will know that something is not right and then you can correct it. If I were you I would start the arimidex with your shots or within a couple of days. I would start with the 0.25 EOD like you have planned. Just so you know and understand any estered hormone takes about five half lives to have a steady release rate. You didn’t specify which ester your test is but I am willing to bet it is enanthate or cypionate. Those two have a half life of about 10.5 and 12 days. So about five to six half lives into your cycle the amount of testosterone being released from the ester will stabilize. From day one to that 5-6 half life mark your release rate and ultimate testosterone level will be rising. So if you notice signs of high estrogen around mid cycle that is why. Simply increase your dosage of arimidex. Chances are you will end up needing to increase the dosage and wanted to explain why so you don’t freak out or think it is something other than that.
You are planning a 12 week cycle. So just to clarify on week 12 you are injecting 500 mgs of testosterone in two equal injections most likely one on Sunday and second on Wednesday. You inject nothing for week 13 and 14 then at the end of week 14 you start PCT at the start of week 15.
If during PCT you notice you are acting like a craZy pregnant woman with your emotions. Like crying at touching holiday commercials on the TV then most likely that is the clomid. Just so you know.
Make sure to obviously increase your clean high protein food. If you use one of those isolated protein powders like I do then make sure you also increase your bcaa’s. Most brands of the powders have the bcaa’s so just check yours and act accordingly. Remember what you need to build muscle, protien, amino acids, and water. (Obviously food to fuel the process)
Just so it is said and I don’t end up regretting not saying it, I would prefer your body fat precentage to be lower. Yours isn’t horrible but nor is it great and their are more risks the higher the body fat is. You are old enough to weigh the risks versus rewards on this subject.
Also click on my profile name then go read my other commitments on needle size and injection locations I recommended for others on their first cycles.
Other than that good luck and I wish you success with your cycle. Chance’s are you will love it and end up doing another one so welcome to our world.