Low testosterone, however endocrinologist doesn’t want to treat it.

Hey everyone, 23m here. I got tested a while back and found out that I have low testosterone, I can’t remember the exact numbers but my I was around 190-200ng/dl and I think my other reading was a 9.2. I saw an endocrinologist last year in December and they basically told me I don’t need anything and that I’m fine (plus charged me $400 to tell me that) and that the low reading was just an estimate, however I’m still struggling with mood, low libido, low energy, poor sleep and the worst of all I’m struggling to put much muscle on at all in the gym. Do you guys think I should get a second opinion? I’m honestly considering sourcing it myself as I don’t know of any other endocrinologists in my area, I’m in Australia if that helps.