The following is not intended as advice for you, because I don't want to make assumptions about your healthcare situation (and you didn't ask me for advice). However I'm sharing it here in case it's helpful to others in whom you may have aroused curiosity.
Exogenous testosterone supplementation induces potentially permanent primary hypogonadism in patients that don't already have it. It can also eventually more or less completely atrophy the testes. Those effects can be partially counteracted by additional drugs, cycling, and so on, but those approaches have their own problems.
Some doctors want to go straight to testosterone supplementation, but I would insist on first eliminating secondary hypogonadism as a cause of low serum testosterone. See a good urologist or endocrinologist who will work with you to figure out root cause to the extent possible. There are treatments for secondary hypogonadism that will restore testosterone to very high levels in individuals with healthy testes.
Exogenous testosterone supplementation induces potentially permanent primary hypogonadism in patients that don't already have it. It can also eventually more or less completely atrophy the testes. Those effects can be partially counteracted by additional drugs, cycling, and so on, but those approaches have their own problems.
Some doctors want to go straight to testosterone supplementation, but I would insist on first eliminating secondary hypogonadism as a cause of low serum testosterone. See a good urologist or endocrinologist who will work with you to figure out root cause to the extent possible. There are treatments for secondary hypogonadism that will restore testosterone to very high levels in individuals with healthy testes.