Hello, I also exercise in the gym without a personal trainer. But I'm not like you. I belong to the fleshy kind, haha, so I don't think you are fat. Proper exercise will certainly have an effect. I dare not make suggestions, but I can tell you my usual gym exercise habits.

It takes about 60 minutes to run or go fast or both. If it were you, I'd say 45 minutes would be about the same.

Then there is anaerobic exercise. In fact, I don't do much about this, but I heard that the weight loss effect is quite good, so I should carry less weight and have more contact.

You can follow your favorite class at ordinary times. Personally, I like aerobics and yoga best, and I will go to them whenever I have time. You can also take your favorite class. After all, sports are boring. I think taking my favorite class can make me more interested.

Haha, the above is my little idea, you can refer to it!