There is basically zero availability of bioidentical ("pure") testosterone outside research facilities. What people take is testosterone-similar steroids.There are various types of steroid for several applications.
Also, without hitting the gym, it will screw your health for good. But at the gym, there are always guys who sell steroids.
So, if you're having trouble to get T, you shouldn't be getting T. Also, the fact that you ignore the most elementary facts on the subject of steroids make you a strong candidate to suffer severe, debilitating side-effects. As a rule, don't use any drug without studying about it extensively.