I am fat (107 kg) and 20 years old boy, how can i increase my testosterone level?

Teostoserone level: needs to be measured by your doc. When you know that he/she can provide T cream if appropriate. There are other male hormones that need to me measured also because they all work together and it may be that another one is low, not T. A natural doc can provide natural ways to support your hormone balance. Peace and good health.