Blood work is always prudent, but I wouldnt consider trt at your age.
You should get your body fat to 12% or less before starting your cycle. You will get too many side effects and also you will get estrogen conversion with body fat above that.
Tren is one of the strongest ones and can be potentialy dangerous especially on your kidnys. It is not a drug for beginners. I would highly recomend it not be ran alone.