Tren should never be used on a first cycle. Tren shouldn’t really be used at all if you aren’t a competitive athlete or serious, SERIOUS gym goer, you don’t need tren, almost nobody does, tren is like poison in a bottle for some. You said you want to run you’re first cycle safely, to run it safely you need to be educated on how to combat side effects, proper injection protocals etc. You should be educated on the potential long term consequences relating anabolic steroid use, however considering this is one cycle that isn’t really important, as the long term consequences that are more than merely subclinical usually appear over decades and to people who abuse very high doses (and I don’t count anabolic steroid induced hypogonadism a serious consequence, I’m talking primarily about the heart guys, however From one cycle it doesn’t really matter)
Primo is apparently a great drug if you can get legitimate primobolan, but it’s expensive, you’d be better off running testosterone as you get more bang for you’re buck, however if money isn’t an issue then good for you (I know I could afford to run 1000mgs of primo/week if I wanted to, I just don’t think the risks are worth it)
Thirdly, despite tremendous progress, you aren’t exactly ready for anabolic steroids, unless you’re already on TRT I would say this is a bad idea. You have a lot of progress you can still make naturally, what if you don’t bounce back and require trt. Getting trt is a fucking nightmare. Granted I can’t judge here, I wasn’t ready to use AAS and I tried them anyway, made nice progress but now also harber immense and unjustified anxiety about potential health problems I might have caused that I almost definately haven’t caused.
Do you know how to PCT? Why do you want to cycle?