Since English is not my first language, I wrote "unefficient" instead of "inefficient" on my username, (I can hear the applauses). Well, that looked like a pretty bad start on the community, so since there is no way to change usernames (as I know) I had to make a new account (which is this).

thank you all for your advices! I'm pretty sure that they will help me a lot on my game developing journey!

Cheers!