So you found an electric club near that development where you were flying.......... You're a newbie, right. Has anyone mentioned that our radios interfere with each other sometimes?

You really need to do something you mentioned already. Swing by that hobby shop and find out where all the club fields are. Then the best thing would be not fly near any of them, but go directly to them and ask to fly there. You need help from experienced flyers. The helicopter flyers should be able to point you to a fixed wing field at least. And they'd also be warned that there is a newbie flying anywhere he can find some open space. So they'll maybe be prepared when one of their helicopters goes out of control or they start getting hit on your frequency. And the electric flyers can probably help you too. BTW, they might have their field based on a promise to NOT have engine noise there. And the people they made that promise to won't have any idea who is making the noise.

Yeah, I know you probably, might, maybe weren't near other flyers, but you really didn't think about something you should have.

There are more reasons than you know for finding experienced modelers to help you.