My feedback would be if you're doing TRT, why do you want to inject so often? Run a longer ester of testosterone and inject once a week or once every 2 weeks.
you aren't going to recover after 19 months on in some cases. once you go past 20 weeks of steroid use you are hitting that danger zone of causing permanent damage. sorry you were misled about that. steroids won't kill you taking them overnight, but they can cause serious issues long term and...
there is no black/white answer to that question. generally 1-2iu's is good in 90% of situations. but those who want to really push things go higher and a lot of times stack with other peptides and insulin