First and foremost for the benefit of anyone else who may read this I have to recommend that before I could offer you any advice you should go and get a full male hormone panel done. If we are going to mess with our hormones we need to know at all times what we are doing to them and the only way that can be determined is with blood work. If you have never ordered blood work here is a great post written by Burr that will assist -
https://musclegurus.to/forum/anabolic-steroids/new-to-steroids-start-here/101634-the-basics-of-ordering-bloodwork
Make sure you give it a thumbs up if you find it to be helpful.
Second if steroid use places anyone in 'pcycho mode' they really need to seriously reconsider the use of steroids, at least until they can be in a more disciplined and stable position that it does not make them take action on feelings that they normally would not have or do things they would not normally do without steroid use.
Concerning blood DONATION and test concentration- The human body is an amazing machine and it adjusts external and internal cellular hydration to maintain a balance of 70/30. It does this every minute of everyday.... that is how efficient it is. If you are remaining properly hydrated after a donation your plasma (fluid volume) is the same within 24 hours after donation as it was before donation. Donating blood will have negligible effect on your blood concentration of testosterone. Your body maintains a proper balance and your blood VOLUME only changes slightly based on your hydration level. Have you ever noticed how your veins will become more dominant when you are well hydrated? That is because your body has all the internal cellular fluid it needs and the balance is stored as external. Once the body determines it has too much external cellular fluid it will discard it and you will have to go pee. Like I said we are an amazing efficient creation.
In your post you are asking for advice without having a clear goal. I suggest stating a goal and what you propose to do and then maybe we can offer more assistance. The level that you are wanting to compete I suggest you do a lot more research before committing more time and energy into steroid use. The education will not go to waste and the time investment will payback is spades.
I stand by my first statement and will not offer my advice other than what I have offered without blood work results. Your health is too important and I do not want to be part of a potentially unseen problem. I hope you find the information helpful or at least educational.
SEMPER FI