Your dosages are killing your erections. Thats the bottom line. Erections are a result of many physiological and neural signals (parasympathetic vs sympathetic nervous system signals, neurotransmitters, etc). You have effectively created an onslaught of a hormonal signal that is shutting down your other physiological, neurological signals.
As an aside, there are a host of dangerous outcomes from supra-exogenous dosages of testosterone. 150 mg q 10 days is more than sufficient for libido, overall wellbeing, muscle growth, etc. Let a trained, licensed physician guide you.
Also, consider getting some blood work labs done on your hemoglobin, RBC count and hematocrit to check for polycythemia. You might need to adopt therapeutic phlebotomy if your HCT is sky high, which likely is given your dosages and numbers.
See a physician ASAP and address these issues honestly.
see:
Melis MR, Sanna F, Argiolas A. Dopamine, Erectile Function and Male Sexual Behavior from the Past to the Present: A Review. Brain Sci. 2022 Jun 24;12(7):826. doi: 10.3390/brainsci12070826. PMID: 35884633; PMCID: PMC9312911.
Giuliano F, Rampin O. Neural control of erection. Physiol Behav. 2004 Nov 15;83(2):189-201. doi: 10.1016/j.physbeh.2004.08.014. PMID: 15488539.
