Martina Maximus

Thank you so much for your help! Just getting over that hump will help tremendously

Hello, I am looking for some help with Photoshop and my clothing creations. I wouldn't say that I'm a newbie at clothes but I'm definitely still a beginner and have lots to learn. I bought some patches and embellisments from the marketplace, but I am having trouble adding them as a new layer on top of jeans. I drag and drop, but the patch has a white background and is too large. I don't know a whole lot about Photoshop either, I'm still testing the waters. Anyways, I have searched high and low, in world and out, youtube, etc., and I have no clue how to fix this. Can anyone please tell me the correct way to add embellishments as a layer and how to get rid of the white and resize? Thank you in advance :) Martina Maximus