I can advise you on where to look for information on how to merge images in Photoshop. This is, by the way, much easy than you may imagine, and you can find all the details right here: https://skylum.com/blog/best-instagram-editing-apps . I hope you found this information useful and that you will be able to complete it on your own.
i was on nulledbuilds, and i wanted to get a cool build, so i pressed the upgrade, it sent me here, i bought the highest plan, but i dont have it on nulledbuilds