Should I get the iPhone XR or wait till the new model comes out?

Hi I'm 18, a guy. I made a mistake and rushed into getting the iPhone XS Max. I should've waited till the iPhone XR. I could have more money in my account if I got the XR. Should I do a trade in and get it? Or just wait till the next iPhone model comes out

I would just wait

I'd wait lol. I'm still rocking the 6s

New models seldom make any difference. If you could return it at no loss in order to buy up that is a question only they can answer. And how long you have held it and its condition. I would focus on using the damn thing than futzing about it.
You got an XS Max? Look at you!

You do have the better phone now, but if you are ok with the trade offs for the XR then by all means. If you want to wait for the next iPhones then it would be a 7 month wait.