For a first cycle I'm taking tri test 400 twice a week at 1 ml per injection. I have tried tren but am waiting to start taking it. Any suggestions if I'm doing OK with that?
you said it is your first cycle but you already tried tren?
my recommendation: do not use trenbolone, at least, just yet. stay away from tren for the first cycle.
suggestions if you're doing ok: you do ok by splitting testosterone dosage throughout per week, but in my humble opinion, 800 mg/week (1 ml of tri test 400 x2 weekly = 800 mg/week) is too large of a dosage for a beginner. 400 mg/week will do. this means 1 ml per week. split dosage per week = 0.5 ml x2 weekly.
Questin: what supplements should I take for liver and heart health and what should I take when cycling off to manage test levels and estrogen levels
you do not need liver supplements if using testosterone alone. although you can still use them if you want to. it can be whatever supplements you want (liv52, nac, tudca, milk thistle etc.)
as for heart health - again, whichever supplement you want. but if you have heart issues, make sure you can use testosterone in the first place (or any other steroid) because they affect your cholesterol and often your cardiovascular heart not in a good way.
you may need to manage estrogen levels during the cycle too.
as for what to take when cycling off (PCT), it is clomid and/or nolvadex
generally, there's still more for you to learn to make sure you're starting well informed