Do we need to have take acting courses before playing in a movie / TV show?
I sometimes feel like I got the potential for this, but i'm scared to be too much confident for at the end be really bad. I don't want to be too sure about myself. And if there are classes to take are the courses on Youtube enough for it?
Youtube videos can also help, since it can offer a different perspective from taking a course. For example, in the course it can be taught by a person that is in the field of being a judge or director for productions, while in a completely different course/Youtube video it could be an up and coming actor giving the advice as someone who has already done what you are going through at the moment.
If you have a local community theater and/or group, it could be worthwhile to ask for advice.
big picture of how it all connects and works together. Volunteering with a community theater will also be good to have on your resume! Good luck!