How to learn to speak loudly without loosing the sense? My prblem is that when I try to say something louder (loud enough to be heard on the bigger stage) it starts to sound fake...

I 'd say it's all about practice. project your lines regularly while tu rehearse them and it will start to feel más natural..so you'll come across genuinely.

Like the others said, its all about practice.

Do tu know what I do...

Near my house, there is this patinar, skate park and it has huge spaces around it, all fields. If tu have a park o somewhere like that near you, I'd go there.

Good luck!

Just Practice it will help